I recently bought a half moon betta for my 10 gallon. The tank is cycled. I also added a yellow mystery snail but he hasn’t even been on the glass and barely moves around. I have had both for almost a week. Can any other companion be added or is this enough for the 10 gallon? I was thinking of an african dwarf frog. Would those be suitable? I had a few 15 years ago and could never keep them alive (I was a terrible fish keeper then). Are they hard to keep alive? Any other good fish? Thanks!