Hi I have an angelfish and leapord leaf fish that live together and have for the last two years. What is the minimum size tank they can be in I have 3 cory cats with them too!
If we talking about Ctenopoma acutirostre, be very careful which corys you choose...
Your leaf fish could reach 20cm and these cunning predators are easily capable of "vacuuming" fish into their mouths that are upto a third of their size (plenty of video clips on the web)!
Sterbais may be just about big enough, but this definitely needs plenty of research before buying.
With the leaf fish, you will need a min of 200ltrs. A friend has one of these, said it was hard to get hold of as they are rare and she had been advised by people dealing in this fish or breeders that a min. of 200ltrs is needed.