Hi there... Don't know if you have been following my progress but I have a 4x2x2 120 gallon that is becoming a sev/geo tank.
What I've learned is that probably more than one adult sev will not work long term unless they are a pair. But again sevs are cichlids and their personalities really do vary. My little Rambo the juvie lip locked like crazy with the male adult sevs I rescued and put in the tank and I had to rehome the rescues. Others have large tanks with several sevs.. Just depends..
For geos, I'm getting some orangehead babies.. I've been told by the experts that they really prefer to be in a group of six. I do know folks keeping less successfully. But I guess it's similar to when I kept discus. Yes you can keep one or even 4 successfully but when you see them in a larger group you see their true behavior and they really seem to thrive more. Also depends on if you want them to breed.
Right now my tank has the juvie sev, an adult koi angel left over from when it was a discus tank, 4 female pearl gourami that everyone ignores, a bn and soon will have the 6 geo babies. I've also been told that I might be able to add a group of bolivian rams as well.. If I did that I would probably rehome the gouramis..
My tank is sand substrate, the few plants that the sev will accept and lots of driftwood. Temp 82/83 and ph around 6.8/7. If I get the bolivians later on I will reduce the tank temp to 81.
Can't tell you if it will work out but everyone seems to think so..and I'm loving the look of it. There are tons of beautiful geos out there and because you have the 6 ft footprint you have more options than I did.The daemon are also very nice.. just depends the size of adult fish you want in the tank. A lot also depends on your aquascape and commitment to water changes etc..
Remember those cute little sevs and geos grow into big fish faster than you think.

HTH Sue
