Recently got 2 gulpers cats 3 days ago and all they do is chill under the sponge filter together. Iv been keeping the lights off to see if they'll move around a bit but they don't really. I havnt tried feeding them I'll be getting shrimp this weekend but I was just wondering if this is normal? I have 6 neon tetras in there so hopefully if they get hungry enough they'll eat them. Also how should I try to feed the shrimp? Just use tongs and put it close to them? Should I leave the shrimp in the tan for a but?