Originally Posted by freshwaterashley
They should stay separate until they are too big to fit in your larger fishes mouth.. what kind of fish do you have? If its just guppies you should be waitig for at least a month.. also.. the cleaner the fry tank is the faster they will grow... not saying clean it constantly bur make sure there is not alot of debris. I do 20 percent every 2 or 3 days on my 1 g fry tank. Keeps them happy and they seem to grow very fast. Wait until they are at least 1cm and you will be fine
Just a couple of things to think about though. Make sure whatever tank your keeping the fry in, it like every tank, has to be cycled. Also if you are keeping all the fry and putting them in the big tank;
1. You are going to have hundreds of fry in no time.
2. You are going to have a lot of inbreeding.
I trade all my fry, when big enough, with my LFS
. I only let my regular breeding pairs breed, 1m/3f. My LFS
separates the males and females. If I want to breed the fry, I swap out all the related males. IMO
, this is essential, when trading/selling, because I want to keep the fry as pure as possible.
If you are planning on keeping them all for yourself, it's not a big issue. Inbreeding leads to smaller, weaker, sicker and sometimes deformed guppies. Inbreeding, especially in livebearers, is an issue already but I want to try and do my bit. Just something to think about.....