Tank ia a year old and is a 30gal long with 4-24w T5 bulbs. Years ago had GBTA's in the same setup but with less flow. Haven't had it two weeks yet,and it has eaten twice already. As soon as I put it in the tank it bubbled the tips for acouple days. Now it never does and moves around the tank alot? I have a large skimmer,Millennium 1000 HOB,Aquaclear 301 PH,Maximini 404 PH. Thats enough flow to keep the nems tentacles moving pretty good. Do you think flow is the issue? Water quality is perfect. I also have three very small local nems in the tank,they are on the other side and never move. Thanks