I remove the plastic mat that the eggs are on to hatch them away from the parents. See the pics in this thread. Some of the eggs are missed and I have found 1" fry in with the parents, the fry survive by hiding in the mats and eating siblings. If the parents see them they will be eaten.
Whats a 522 ? If its a 522ltr tank it is big enough, I would not be surprised if they do group spawnings.
1. The mat makes it easy to remove the eggs, the fry stay with the mat for about 4 weeks. It gives them somewhere to hide.
2. The filter in the parents tank is a goldfish bowl undergravel filter in a 2ltr icecream container 3/4 filled with gravel. 2 of them in a 3' tank. The eggs are placed in a small tank with meth blue and an air stone, when they hatch I replace the stone with an air operated sponge filter.
thanks for ur input, anyway, when they hatch u replace the stone with an air operated sponge filter, wouldn't that suck the fries into the filter as they are still small after they hatched. thanks bro for helping.
These days I keep the delhezi and endlicheri in 600ltr tanks 2 pairs in each tank. The endlicheri haven't spawned yet, the delhezi have had dozens of spawns without producing any fry. I pulled some more delhezi eggs today, one day they will get it right. I have raised over 400 senegals since 2008 and still get a buzz when I see eggs.