I recently switched out my seio 620's for some 1100's in my 38 gallon. Now i'm pushing around 60x for my tank. it's mostly sps with the exception of some zoo's. however, since the 1100's have gone in, i seem to find my strombus snails stuck in the intake every morning and they are usually dead. do any of you guys have this problem? I use that mod for my seio's to run like tunze's. any help would be much appreciated. Thanks.