u/Mr_Shade2

I have other tank that contain Pearl gourami, Danio zebra, and Albino corydoras.

So for my other tank which is about 37 gallon what do you recommend? I thought of Angel fish pair, a group of Tetra or Platy, a group of Corydoras.

would that ring on the bakc get loose/weak or if you put it on a car magnetic stand would it stay still or would the ring stick while it open like a door, like if it hanging ?