Guppyman
Aquarium Advice FINatic
Although my corys are constantly laying eggs in my tanks, I generally just let the eggs be eaten by the guppies. The other day I was breaking down a tank that was crowded and in need of a good cleaning. After removing all the guppies and the plastic plants I use to hide fry - lo and behold, tons of fresh cory eggs. I put a 1/4 teaspoon of methylene blue in the tank to prevent fungus. Three days later and I have about 125 tiny corys. Since I use no gravel in my tanks they are easy to spot. I put a spirulina wafer in the tank and about an hour later the were all over it. I just found another tank with about 300 eggs. If they are still there in the morning, I'll move the fish and plants and see if I can get another batch to hatch. If you've never seen them in the first few days you are really missing something. They look and swim exactly like spermatozoa. What a whoot. Of course this spawning happened 3 days after purchasing 200 corys from a local shop. FYI - contrary to most guppy breeders, I generally keep 4 or 5 corys in each tank. They are great at keeping the tank bottoms spotless and they save me hours of labor by not having to siphon mulm off the bottom of any of my tanks. And NO - they do not eat the babies. Healthy, viable ones, anyway.
Guppyman
Guppyman