I just picked up a beautiful wood trim, wood stand 20g hex at a garage sale for $20! I have some time before I buy fish for it (cycle and all). It will have a Fluval 204 filter Ebo Jager 125w heater. It is a typical hex, small footprint and tall. I really wanted discus, but have been told it is too small. I have a community tank (20g long) already and want this to house something "special", I'm not quite ready for the saltwater plunge. Any ideas on fish that are different (maybe cichlids?) that can go in a small tank like this? My other issue is that the ph out of my tap is 6.8 but goes way up to 7.2 after sitting, this will make water changes tough for any fish very sensitive to ph (I think).