Join Date: Aug 2011
Location: Kingston, Ontario
20 gallons and 7 girls leaves you with quite a bit of room.
Kuhli loaches like groups, they burrow in the sand, usually you will see them more if they have a lot of hiding places for them.
Cory catfish are a popular choice on here, there's lot's of different types, and they like groups also. You could easily fit 6-7 of any type with your betta. Just stick to the same species, since they prefer their own kind. Albino, Bronze, and Green Cories are all the same species, so you could get those if you want a variety and mix them. Other common varieties include, panda (the most sensitive, don't recommend), peppered, julii, false julii, adolfo and skunk. It all depends on where you are pretty much.
For shrimp, ghosts are good, as well as cherry and amano shrimp. Shrimp are sensitive little guys, so don't feel bad if you don't have success with them at first. Many betta have been known to snack on them, so ghosts are a better option since they're usually the cheapest variety to have around.
A few nerite snails, or you could get a single apple or mystery snail. Keep in mind your snails will probably produce more poop than your fish, and tend to make a bigger mess than they clean up if that's what you want. Shrimp are much better cleaners.
taking a break from fish-keeping.
3 lovely male betta still keep me company.