well, I have posted this before, so if repeat for some of you... I know its boring to read some dumb fish list over and over. But he asked for it, so :
weird combos tank#1
20"+ aba aba
10"+ BGK
Stingray
sheatfish,
Dorado AND ATF (about 12-14" each)
4" Blue acara and 6" jurapari
20"+ black aro
4" Syno decorus
big sleep goby
Mbu
a buch of other fish like dats, red devil, catfish, endlicheri bichers, fire eels, etc
why is this weird? Only because of the huge size differences between the big and small fish and because some of these guys ought to be killing each other... but for some reason they dont....
Tank#2
among a whole slew of other fish (rainbows, tertras, killies, gobies, crabs, prawns, mormyrids, knife fish, and more ....at least 50diff species in his tank) I have dwarf pike cichlids, a couple diff sp of Apistograma, yellow labs, kribensis, honduran red points, jewel cichlids and elongate buffalo heads and 3 geophagus (red hump and mystery geo) and a school of glass cats all living in harmony somehow.....