Flowerhorn breeding space

I t would be ok I guess but it depends on the size of the female as well

usually i just drop in the female, but if you want to stay on the safe side, i suggest you use a divider first and watch for aggression levels.

Its very easy to know if they can breed or not, put both male and female in and if they fight a little or some time no fight at all then you know your male is good to go. If you see they fight constantly more then an hour then its no good. Separate them out and try again later. Usually if the male is fertile then he doesn't fight with the female that much.

My own experience, 75 is plenty for both with filtration/waterchanges. I never put the famale into the males tank, I go the other direction and put the male into the famales tank, she lready feels at home there and is more likely to respond positivly to the new addition. When you introduce famale into males tank, he is already dominant and she is out of her element, he may beat on her before she gets a chance to figure out what the heck is going on. As for fertility if you have a spawn and no eggs are fertilized on more than 2 attempts, he may be shooting blanks.

Pretty much sums it up aye. All the rest is speculation.