- The Bermuda Fry
Transcription
- The Bermuda Fry
Photo by Jeff Rapps - http://www.tangledupincichlids.com/index.htPml ISSUE 128 FEBRUARY 2006 FREE Heros sp. ‘Rotkeil’ or redhead severum – see page 10 for details THE OFFICIAL PUBLICATION OF THE BERMUDA FRY-ANGLE AQUARIUM SOCIETY PENTAIR AQUATICS AQUASTEP UV STERILISERS 10W UP TO 300GPH $150 15W UP TO 450GPH $185 25W UP TO 750GPH $250 Internal Step Design. Directs water back and forth across UV light tripling the contact time through the unit Versatile. Inlet and outlet at top for hang on and at bottom for below aquarium installations. Use inlet ports on each side to connect multiple units together for any size requirement. Water Fall. Increases oxygen level by spreading out a thin sheet of gently falling water. High Capacity. More capacity than any other make of equal height due to shape of chamber and step design. Distribution Plate. Evenly distributes water into chamber. MUST PURCHASE PUMP SEPERATELY Your Reliable Animal Care Specialist MON—FRI 9:30 AM—6:00 PM SAT 8:30 AM—6:00 PM TEL : 236-1533 FISHTALES 3 The next meeting will be at 8pm on Friday 17th February at the Police Recreation Club, Devonshire. The guest speaker for the night will be Ken Davis. He will give a Powerpoint presentation on a collecting trip to Honduras. Sunday February 19th: Annual Home Show Contest – Ken Davis will Judge the tanks. Entry Deadline Friday February 17th. 4 5 6 8 Call Carol at 236-1533 Mon-Fri between 9:30 & 6pm A complete list is availble on our web site: www.fryangle.com President’s Podium Guest Speaker Ken Davis Breeding the Red-Tail Goodeid Spawning the Chinese Algae-eater Spotlight: 10 Species • Archocentrus sp. “Honduran Red Point – Rio Monga” • Archocentrus spilurum “Rio Blanco Gold” • Zoogoneticus tequila • Heros sp. “Rotkeil” – Red Tie Heros or Redhead Severum Need more information on Your Fish or Plants? Well check out our library, we have some great books for you to borrow and its free to members. In this Issue: NEED YOUR HELP!!!! Need your articles, comments, book or equipment reviews for future issues of Fish Tales Bermuda Fry-Angle Society f you are inerested in joining the Bermuda Fry-Angle Society, just come along to our next meeting to see what we are about. Meetings are held on the third Friday of every month either at the Police Recreation Club or the Lecture Rooms, behind the Bermuda Aquarium, Museum & Zoo, or contact Howard Paynter Sr., Membership Coordinator at 292-3828(w) or email: hcycles@northrock.bm. He will be happy to provide any further information or just sign you up. Application forms are also available at Noah’s Ark (just ask at cashier’s desk.) You can also download an application form from our website: www.fryangle.com I Membership fees are $20 for the year, and payable to Bermuda Fry-Angle Aquarium Society. BERMUDA FRY-ANGLE AQUARIUM SOCIETY 4 FISHTALES PRESIDENT’S PODIUM ow! I missed a meeting! In the seventeen years that the society has been in existence, I have hardly ever missed a club meeting or event. One year I had to attend a training course in Barbados at the same time that our Annual Fish Show was taking place but I can’t remember missing another event. Perhaps I missed a meeting or two years ago when I was working shifts but, if I did, I don’t remember. Anyway, I somehow double-booked myself for the January meeting and was committed to taking my daughter to the theatre, so I missed the meeting. From the reports that I have heard, I missed a very interesting Powerpoint presentation by Mark Outerbridge regarding the Bermuda killifish population. I’m now hoping that I can catch the presentation when Mark next gives it. The club was also able to present Mark with a cheque during the meeting. The cheque, for $1,000, will help to finance the DNA research that may finally clarify just how many species of killifish exist in Bermuda. In February we will welcome back Ken Davis as the visiting speaker. When Ken last visited, many of our members were on vacation or were otherwise committed, resulting in a low turnout. Ken had brought a lovely selection of Discus and other species for auction. Despite the low turnout, the auction was very successful. On this visit, Ken will again kindly donate fish for auction so I hope that we have a strong turnout by the members. Some of the species that will be in the auction are featured in this month’s Species Spotlight. We will be holding our annual Home Show on Sunday 19th February. This is where the members travel to the homes of competing members to see their best decorated aquarium. W PRESI DEN T Visiting speaker, Ken Davis, will be the independent judge. He will score each tank and the winner will be announced once all tanks have been judged. All members are eligible to enter the Home Show. We will need to have a list of all competitors by the meeting on Friday 17th February. With more and more visiting speakers switching to Powerpoint presentations instead of slide shows, the Society is looking at purchasing our own LCD projector. We have been fortunate enough to be able to borrow a projector whenever needed, at no cost, but we have had some difficulties with the colour rendition at recent meetings. We will be consulting members before making such a large purchase. Time to start thinking how you can help run our Society Our AGM is NEXT MONTH Friday 17th March, at the BAMZ Lecture Room All Executive and elected positions are up for grabs BERMUDA FRY-ANGLE AQUARIUM SOCIETY FISHTALES 5 THIS MONTH’S GUEST SPEAKER F R I D AY, F E B R U A R Y 1 7 T H 2 0 0 6 – 8 P M P O L I C E R E C R E AT I O N C L U B , P R O S P E C T, D E V O N S H I R E Ken Davis en Davis has been keeping fish for 43 years, His interest lies mostly with cichlids and livebearers and he maintains and breeds over 100 species in his 12,000 gallon hatchery. A true fish nut at heart, having owned both retail and wholesale fish operations, his interest now are to breed hard to find or endangered species. Recently he was fortunate enough to fulfill a life long dream to go on a collecting trip with some of his good friends in the ACA to Honduras. The collecting bug has bitten and he plans to go back again this year. He would love to visit Mexico and South America to collect in the near future. K BERMUDA FRY-ANGLE AQUARIUM SOCIETY 6 FISHTALES Breeding the Red-Tail Goodeid H (Xenotoca Eiseni) by Simon Onabowale (BFAS) December 2005 aving successfully spawned swordtails I was ready to step up and try another more obscure live-bearer. The Red-tail Goodeid is not widely kept in the aquarium hobby but is a beautiful fish for a community tank. Color varies from a dull grey to a bright yellow depending on its mood and water conditions. As the name suggests the tail is a nice reddish-orange color. A native of Mexico and Central America this species is hardy and can endure wide ranges in both pH (5.5-8.0) and temperature (13C to 32C). It stays small (grows to about 6cm) and is relatively peaceful - getting along with other live bearers as well as gourami and smaller cichlids. Food It isn’t fussy about food either and will eat flakes, frozen or live food. As it has a small mouth it is best to feed crushed flakes and small live food like brine shrimp. The occasional bloodworm treat is gobbled up. The Red-tail will eat primarily from the top level but occupies all levels of the tank and will scavenge food from the bottom. Sexing Sexing is easy once the fish is mature. Females will be slightly rounder with a gray patch on the stomach just in front of the anal fin. I have found the males to be smaller and to have a brighter red tail. They also tend to be pinker around the gills. Breeding As this is a relatively peaceful fish getting them to breed is not extremely difficult. Like mammals, the male impregnates the female and she carries the fry to term (about 60 days depending on conditions). The typical ratio of 1 male to 2 females works well and reduces the male Male sparring that can occur. I started with a group of 5 juveniles – 2 males, 3 females in a 20gallon community tank shared with gouramis, swords and snails. As they grew it became apparent which Female were females and which were males and I kept a close eye on the condition of the females. As the fry grew in her abdomen the female seemed to become incredibly swollen until it appeared that you could almost see the eyes of the fry through her skin. Although I watched closely, I missed the initial spawning. I woke up one morning to find that the most pregnant female had released the fry BERMUDA FRY-ANGLE AQUARIUM SOCIETY FISHTALES 7 during the night. She was looking fit and trim, but there wasn’t a sign of any fry. Apparently the others in the tank were opportunistic feeders and must have mistaken the fry for brine shrimp! As the second female approached term I decided to remove her to a separate breeding tank. I used an ordinary 10 gallon setup with a corner sponge and plenty of hiding places for the fry: rock caves, java moss and some castles and things with openings too small for the adult. Water conditions were identical to the community tank: pH 6.8, Ammonia 0, Nitrites 0, Nitrates <20ppm, Temp 24C. To induce the female to release the fry I raised the temperature slowly to 27C and performed 20% water changes twice a week. I’m not sure if it helped or not, but after about two weeks I noticed a handful of tiny fry peeking out from the java moss and the caves. The female was still gravid so it seemed that it would take some time for her to release all of the fry. After about 24 hours she appeared back to normal and there was a noticeable increase in the number of fry. At best count there were approximately 30 little guys each less than 1.5cm long. Caring for Fry As I previously found out, the fry make little snacks for other fish including the adults so I returned the female to the community tank. The nice thing about live bearers is that the fry are very well formed, free swimming and able to seek out their own food. I started with very fine crushed flakes which they took readily from the surface. I also added some floating duckweed which naturally contains minute organisms like infusoria. I’ve found that this works well for fry especially when I can’t get home to feed them their three full meals per day. The duckweed provides a sort of constant feeder if they get peckish. If you don’t have floating plants or are afraid of bringing in bad bugs, the local fish store sells Liquifry which (I’ve heard) does the same thing in providing microscopic food. While the fry will get most of the food, they are messy eaters and care must be taken to maintain water quality. I did weekly water changes of 20% making sure to siphon the debris off the bottom. A small caliber siphon is best to ensure no fry get sucked up. Conclusion To summarize, breeding the Red-tail Goodeid is not extremely difficult as long as you can care properly for the fry. To maximize the spawn size, isolate the female and provide plenty of hiding spaces. For feeding, use finely ground, high quality food in combination with infusoria. Water quality should be maintained with (at least) weekly water changes of up to 50%. If all is done right, just sit back and enjoy this hardy, pretty fish. Hints / Tips / Tricks New handles for glass canopies - most glass covers come with a plastic handle that inserts over the edge of the front piece of the cover. If this breaks, what do you do? Well, you can try to repair them with some sort of glue, but here is an alternative: silicone and marbles. Most "marbles" (the toy balls used in games) are actually glass, and come in a wide array of colors. They make attractive "handles." Place a dab of silicone on the center of the front cover, about one half inch from the front edge. Then, choose a marble and place it on top of the silicone, using a slight twist (this gives you an even spread of silicone). After 24 hours, your new handle is ready. Silicone works very well in bonding glass to glass, so these handles are quite durable. – Joe Ferdenzi Greater City Aquarium Society BERMUDA FRY-ANGLE AQUARIUM SOCIETY 8 FISHTALES THIS ARTICLE REPRINTED FROM Aquarticles.com And one day there were fry... Spawning the Chinese Algae-eater (Gyrinocheilus aymonieri) By William Berg of Sweden, for aquaticcommunity.com Gyrinocheilus aymonieri Common name: Chinese algae-eater Family: Gyrinocheilidae (Algae eaters) Order: Cypriniformes (carps) Class: Actinopterygii (ray-finned fishes) Max size: 30 cm/ 12 inches Water conditions: pH range: 6.0 - 8.0, temperature 25 - 28°C/ 77-82°F I would like to say a few words about one of the bigger surprises I've had as an aquarist. A few years ago I was cleaning out a 50 gallon holding tank in which I kept fishes that were going to a new aquarium when the new aquarium was ready. I also used it for keeping fish I didn't know what else to do with. At this time this aquarium was home to twelve blue discus of about 10 cm, and four albino Chinese algae-eaters that were about 20 cm. The aquarium was overgrown with lots of C. Demersum since it had been neglected a little during the previous months. Now the time had come to clean this aquarium and try to weed out the jungle that had formed. To my big surprise I found a small (1.5 - 2cm) Chinese algaeeater fry. After looking around a little more I found a total of seven fry. I stopped the cleaning and left the aquarium as it was, since the water quality was good and I didn't want to change too much. I didn't see any reason to move the fry since they seemed big enough to be safe from the discus which I was moving to a 120 gallon Amazon tank in a few days anyway. The fry survived and grew relatively fast on a diet of what they could find in the well-planted aquarium, and boiled lettuce. But I never got the par- BERMUDA FRY-ANGLE AQUARIUM SOCIETY Continued on page 10 FISHTALES SPECIES SPOTLIGHT 9 The Honduran Red Point is sometimes called the Blue Convict but it is not believed to be a colour morph of the Convict Cichlid (Archocentrus nigrofasciatus) Rather, it is believed to be a new species, closely related to Archocentrus nanoluteus. This pretty cichlid stays quite small and several pairs can be kept in the same aquarium, as they are not overly aggressive. The particular strain being brought to Bermuda is from the Rio Monga, which is the location where Rusty Wessel and Ross Socolof first found them in 1989. This strain has bright red fins on the males and a red belly on the females over a purple/blue body. PHOTO BY KEN DAVIS Archocentrus sp. “Honduran Red Point – Rio Monga” Archocentrus spilurum “Rio Blanco Gold” The strain being brought to Bermuda is from the Rio Blanco, which is a tributary of the Rio Copan in Honduras, near to the Guatemalan border. The males show a nice gold colour and are much brighter than the brown strain that is established in the hobby. PHOTO BY KEN DAVIS Archocentrus spilurum is another small cichlid with a maximum size of about 4 inches. The natural range of A. spilurum is the Atlantic slope of Belize and Honduras where it inhabits both lakes and rivers, preferring shallow slow moving waters. Wild caught pair Zoogoneticus tequila This beautiful goodeid comes from the upper reaches of the Rio Teuchitlan Ameca Basin in Mexico. Actually, it would be more correct to say that it did come from that location. Having only been discovered in 1990, it now appears to be extinct in the wild. The species can only be found in captive populations. This livebearer is peaceful and very adaptable to a variety of water conditions. It will do well in an average community aquarium. The fry are large enough at birth to take newly hatched brine shrimp. BERMUDA FRY-ANGLE AQUARIUM SOCIETY 10 FISHTALES Similar in appearance to Heros severum and Heros appendiculatus, this species is distinguishable by the bright red collar. It is a fairly new species from the Rio Itaya in Peru where it eats vegetable and live foods. It does not grow as large as the Severum and is a relatively peaceful species. The peace may not extend through spawning behaviour, when the species has been reported to stake out a territory of about 50cm x 50cm x 50cm within an aquarium, attacking anything that strays into that territory. A large tank would be beneficial for maintaining a group of these cichlids with a 75 gallon tank having been recommended by one breeder for an adult pair. Spawning the Chinese Algae-eater – Continued from Page 8 ents to spawn again, and the fry themselves never spawned either. However I would like to say a few words about how the Chinese algaeeaters had been kept before the spawning, and which waters they spawned in, to see if I can help anyone else have success where I failed - to breed Chinese algae-eaters and figure out what triggers them to breed. When I found the fry their parents had been in the holding tank for about 2-3 months. Before that I had kept them in a 50 gallon tank which was heavily circulated and contained very few plants. Temperature was 25°C/ 77°F. They were kept with clown loaches and various barbs. I've been wondering if the fact that they were kept in a heavily circulated aquarium and then moved to an aquarium with close to no circulation and warmer water (28°C/ 82°F) may have simulated a natural change in conditions that precedes spawning. The breeding tank was as I said before, heavily planted, and had little or no circulation at all, due to the vegetation. The water was old and clean. Dh about 4. I can't say the exact water conditions as I don't know exactly when the spawning took place. However the water conditions had been relatively stable and it is reasonably safe to assume that the stated water conditions are correct. The Chinese algae-eaters had been fed a varied diet which consisted mainly of boiled lettuce and broccoli, Hikari sinking algae wafers, and shrimps. They also ate the leftovers from the food I gave the barbs and loaches, which consisted mainly of different frozen foods. Sexing the fishes I assume is simple. I believe it's done in the same way as Corydoras catfishes. Some fish have much broader bodies and I assume them to be females; males are more slender especially if well fed. Getting the fish into spawning condition seems to be quite simple if they are fed a good diet. However the problem seems to be triggering them to spawn. As I said, I never got them to spawn again. Maybe you will have better luck! 2006 American Cichlid Association FOR MORE C O N V E N T I O N I N F O R M AT I O N Get more out of the cichlid hobby! July 20-23, 2006 – Chicago, IL BERMUDA FRY-ANGLE AQUARIUM SOCIETY h t t p : / / w w w. a c a 2 0 0 6 . c o m PHOTO BY JEFF RAPPS Heros sp. “Rotkeil” – Red Tie Heros or Redhead Severum BERMUDA FRY-ANGLE AQUARIUM SOCIETY EXECUTIVE COMMITTEE President: ................................................................Craig Morfitt Vice-President: ......................................................Nyon Steede Treasurer: ..............................................................Nyon Steede Recording Secretary: ..............................................Peter Marsh Corresponding Secretary: ................................Wendy Corrado ELECTED OFFICERS Librarian: ..............................................................Carol Terceira Breeders Award Program Chair: ........................David Terceria Editor: ....................................................................Peter Marsh Webmaster: ............................................................Peter Marsh Membership Coordinator:............................Howard Paynter Sr. SEND US YOUR IDEAS! Contributions are welcomed! We welcome contributions SOCIETY MEMBERSHIP Membership to the Bermuda Fry-Angle Aquarium Society is open to any resident of Bermuda who has an interest in tropical fish. The annual membership fee is $20. The Society’s financial year runs from April 1st to March 31st. Meetings are held on the third Friday of every month. Meeting place is either the Police Recreation Club or the Lecture Rooms, behind the Bermuda Aquarium, Museum & Zoo. Occasionally meetings are held elsewhere. Check the “meeting” column in this newsletter for details of upcoming meetings. If you would like further information please contact Howard Paynter Sr. Tel: 292-3828(w) or email: hcycles@northrock.bm to Fish Tales, including articles, comments, book or equipment reviews, letters, crosswords, puzzles etc.… Any contributions should be sent to PETER MARSH P.O. BOX HM 744 HAMILTON HM CX or Email: REPRINT POLICY Unless otherwise stated, articles appearing in Fish Tales have been written by local (Bermuda) authors. These articles may be reprinted. Should another aquarium society decide to reprint an article we ask that they provide us with two copies of the publication containing the re-print (one copy for the author, one copy for our Society). We will abide by the same conditions when re-printing articles from other publications. pmarsh@northrock.bm L O C A L LY P R I N T E D M AT E R I A L We’re on the Web! www.fryangle.com PRESIDENT, CRAIG MORFITT P.O. BOX WK 272 WARWICK WK BX BERMUDA THE OFFICIAL PUBLICATION OF THE BERMUDA FRY-ANGLE AQUARIUM SOCIETY The guest speaker for the night will be Ken Davis Police Reccreation Club, Devonshire Friday February, 17th, 8:00 p.m. NEXT MEETING