Stocking 20 G Tall
Hey all! I'm pretty new around here, but am looking for some advice on stocking my 20 G tall tank.
I currently have one Halfmoon betta and a mystery snail in there. I know there's some debate over putting a betta in a 20G tall vs. long, but he's been in this for about 6 months now and is perfectly healthy and happy! The tank us pretty heavily planted with plenty of nooks and crannies among rocks and driftwood for hiding places. It currently runs on a sponge filter, to prevent a strong current for the betta. Water parameters are ideal with the current setup.
While I love the betta, I (and more so, my fiance) would love to see some more movement in there. I have been considering adding some shrimp, harlequin rasboras, and/or some neon tetras. I've read great things about housing harlequins and bettas together, so I may be leaning more towards that. I'm not sure exactly how much my 20G can house. Can I fit a school of both harlequins and tetras, or should I just leave it at some Harlequins? How many of each should I try putting in there? Additionally, how many shrimp should I consider adding? Is all of this going to leave me with an overstocked tank?
Thanks for answering the questions of a newbie! <3