For full information on my aquarium,
[ Ссылка ]

After a 20% water change, the unexpected happened. Started with these Cardinal Tetra suddenly became 10x more active and chase each other around. Then I realized somehow it triggered their spawning. Maybe the water change resembled a heavy rainfall in the wild?
You can see most of the little eggs being eaten by other fish and cardinal themselves instantly. One Black Phantom Tetra got too excited at eating eggs...too excited...even her color had changed lol.
I wasn't prepared to breed Cardinal Tetra. The would be fry tank was acting as a hospital tank for some newly arrived Neon Rainbowfish with mouth rot at the time I shot this video. To breeding Cardinal Tetra, maybe another time.

Many online sources claim that Cardinal Tetra have to have specific requirements in order to trigger their spawning. It doesn't seem to be the case here.

My tap water has PH of 8.0. And the PH in the aquarium is about 7.6~7.8.
"They need acidic soft water"... yeah right :X

My T5HO high light is still on
"They spawn in the dark"... yeah right :D

I haven't fed any live or frozen food in the last 2 weeks. Only pellets.
"They need to be fed live food for conditioning"... yeah right :P

Looks like it is much easier to breed Cardinal Tetra (at least to have them spawn) than what was said in the book. :)

I'd think raising the fry would be more of a challenge.

свернуть