:? Hi Everyone! This is a great site, especially for people such as myself who are new to cichlids. I am hoping to set up another tank soon, and would like to have 3 species of dwarf cichlids, 6 brown marbled hatchetfish, and about 15 cardinal tetras. Question #1- which 3 species will best co-habit the same tank? From some of my reading, the suggested species include: Apistogramma agassizzi, A. borellii, A. cacatuoiodes, A. macmasteri,A. maulbruter, and German blue rams. Question #2- I understand that A. borelli and rams are best in pairs, and A. cacatuoides is best in a trio. What about the other 3 (agassizzi, macmasteri, and maulbruter)? Question #3- What size tank will I need for this batch of fish? To be honest, most websites recommend tanks far larger than the average hobbyist will ever buy! My 2 present tanks are overstocked by some standards, but they are pleasing to the eye, and are healthy. I am faithful to feed lightly and to do weekly partial water changes. My water is a spring-fed well, which is soft and acidic (and absolutely wonderful for drinking - no bottled water for us!). I am hoping a 55 gallon tank will suffice. A 75 gallon would seem HUGE! Thank you for your help with these 3 questions!! Shirley