blowing rock kill copepods

during my cleaning i will blow off my rocks, which of course is a good thing. however i may be doing it wrong and would like to know if my method can be harming/killing pods other things in or on thr LR. i use a power head like a maxijet 1200 and put the output right into hole opening. it gets the gunk out, all the little holes start skriting stuff out of them but i started thinking about this now that my pod levels have droped way down. maybe im killing them by doing this? my train of thought was a comparison. imagine you were standing in a cave and a sudden 200+ mph gust of air hit you. for sure you would be taken right off your feet and would no doubt hit the cave walls as it pushed you through it injuring you if not killing you. should i be using somthing not as high presser or is my current method ok?

 

The difference is we don't have an exoskeleton where pods do. Also, think about tide and current and storms of the real ocean...that's much more than a mj 1200. I don't think you are doing much harm at all.

 

My fish eat the pods pretty efficiently. My clown fish picks all day at them as well as my yellow tail damsel.

I would suspect a decline in population would be attributed to fish eating them and a decline in the pods available food source. Very much like a decline in bristle worm populations once a tank ages and becomes established.

You could always just use a turkey baster to clean the rocks if this is a concern.