This time ABNs definitely have spawned:)

[YSR50]

If you keep getting larger tanks, you'll be able to buy multiple males. ;) Don't think the tank size is the problem. Either just a lousy dad, or too many distractions.

The most productive BN's I ever had were kept in an Eclipse System 6-Gallon Aquarium. The tank started out as a shrimp tank with 3 BN fry. I never took care of the tank so slowly the shrimp died off, leaving what turned out to be a breeding trio of BN. As they grew larger I pulled one female and the pair that was left still continued to breed about every 4 weeks.

[pleconut]

Have thought about this. Although the high rates of fry population is a very valid point it is something I've set time, resources, ect into the plans. Definitely won't be a permanent arrangement.

[bekateen]

I will second YSR50's comment. Last year when my ABNs were breeding like crazy, I had one dad and one mom in a standard 10 gallon tank, and they produced hundreds of fry (which I'm still selling off).

[pleconut]

Received my additional females. Allowing them to settle in another QT tank and away from male thats likely to chase and stress them. At the weekend setting up a bigger tank for the group and at first for any fry that are produced.