02-11-2010, 03:13 PM
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It is not impossible, but it is next to impossible, to have eggs survive to hatch and then the fry survive to become adult in an aquarium with adult fish. Some species on their own will work, the cichlids come to mind. I have had one diamond tetra, two kerri tetras, one beckfordi pencilfish, one diptail pencilfish, and now some chocolate gourami and (I think) pygmy sparkling gourami fry survive in my large community aquaria.
Currently the chocolate gourami are spawning regularly. In mid-December I spotted one fry in the floating plants, just a black speck I almost siphoned out during the water change. He managed to survive and is now just over half an inch in length and swimming around with the other fish who completely ignore him. Two weeks ago I spotted 7 new fry, and this week I can only see 2 of them. I also have two others that are certainly not chocolates and I'm suspecting they are pygmy gourami. I just leave them, what survives will survive, nature naturing and all that. Some fish are more active and adept at finding eggs and fry. I can always tell when one of the characin species in the 115g are spawning because there will be a group of several other fish hovering among the plants, just waiting for the eggs to be released. Then a frenzy of gobbling them up as they fall. How even one occasionally manages to escape this predation is a miracle.
The fact that your corys are spawning is good in itself; they are obviously content in their habitat. Which reminds me, I had my pair of Corydoras similis spawning Sunday after the water change. Doubt any will survive though.
Byron.
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