I have some questions about how to make a Central American tank. It'll be a 40 breeder. I'm planning on having firemouths, swordtails, and hopefully some sort of catfish/algea eater. I need to know how many fire mouths I can keep with 6-10 swordtails. And I also need to know if there are any catfish/algea eaters from the same location as the FM's and ST's. Thanks


