Not to stick my nose in here, but been following this thread for a while, and according to the sticky and other forums that give advice on breeding betta (such as our sister site) They say you need at least a 20 gallon minimum
grow out tank.
from the sticky in our website:
· Bettas can produce up to one thousand eggs in a single spawn. That means you will have hundreds of little babies swimming around and eventually will grow into adults. This means you will need space for a growout (minimum of 20 gallons), and potentially hundreds of jars to keep all the males.
I wouldn't argue with an experienced breeder being able to do so with less, but this is the OP's first spawn wouldn't it be better to go by the book?
Originally Posted by Lighterman