where are the sweepers?

[skimmer01]

I have a galaxy,favia brain,branching hammer,torch,and trumpet coral and the only one that I ever see extend its sweepers is the trumpet. They are all at least 6inches frome each other as well as any other corals (Rics,leather,zoos,and digita) I run carbon in a canister and my perameters are nitrates 10ppm,amonia 0ppm, alk 8.5, and calicium 375 to 400. I have checked for sweepers with all lights off and tried feeding mysis, rotifyers,phyto, and cyclopeez both with lights on and off. Can any one tell me why the trumpet is the only one sending out its sweepers is this something to be concerned about?

 

[mthedude]

I'm having the same issue w/my hammer. I used to have a torch and it never extended any sweepers either. My bubble would do it every night, I don't have an answer but I'll definately be waiting to see what everyone else says.