I've got 8 of them in total (2 males, 6 females) in a 10 gallon tank. The males do an amazing fin dance with eachother and when trying to get the females attention! They're still pretty young and I've only had them for 3 days, but their color change has been really cool to see. So hard to get photos of though, they never stay in one place for long.
Been cycling this 10 gallon tank for about two weeks using coconut husk as a substrate capped with black sand. There are currently 3 ramshorn snails eating up the leaf litter and cleaning up algae. Lots of plants including 2 avocados growing long roots in the back. I've also got one of the roots from my planted monstera dipped in it and it's growing rapidly.
The tank is currently unheated but I do have a heater if needed. My windows only get sun for a few minutes in the evening and the temperature hovers in the "safe zone" on my thermometer between 21c-24c. I can also close the blinds if need be but the plants get lots of light this way.
Tested the water yesterday and it's at these levels:
PH: 7.1
KH: 60
GH: 80
Ammonia: 0
Nitrite: 0
These levels have been stable for at least a week. My hardness did go up a bit after I added a bit of crushed coral for the snail's shells.
I'm starting to think about what fish to add into this tank once it is cycled. It's a small tank so probably just some micro fish, but I'd like to have some bottom dwellers to clean up and some small middle or surface swimmers. I'm thinking rice fish since they are pretty hardy and maybe a couple borneo loaches? I really want corydoras but I think this tank might be too small for them unless I get pgymies.
I'd love some general thoughts, suggestions and advice!