Putting plants in my tank does not completly solve my problem though I don't think. These rswim around very happy and healthy from mon-sat, the second I start to vacuum my gravel they get stressed right out and stop swimming, lose their bright color and breath extremely heavily. With this happening, I still believe that its gas pockets because they are 100% normal untill begin vacuuming my gravel. If they were sick/stressed from illness/tankmates/water conditions they would show signs of it during the week. The only time they don't act normal is right when I move the gravel around with my vac.