Alright last question for me today. Looking for some info on Denison Barbs. I have 7x that are fully grown. Everything I read online says they should stay on the top or middle of the tank however mine are ALWAYS swimming on the very bottom just above the substrate. I have tried things like adding driftwood on the bottom to make them swim up higher but they just swim over it and back down. They have been in the tank over a year and have always swam on the bottom. The issue now is I have a majority of my fish as bottom dwellers with them being on the bottom as well. I would like them to move up higher. I know this question is random and also a head scratcher of what could possibly be done about this. Just wondering if anyone else has had this issue and changed it.
Tank 220g 72x24x30. Lit with dim light LED
. No plants. Driftwood