i just put a tunze pump in my reef tank and iam wondering if its to much for my clams, i have 1 maxima & 2 croceas,maxima 4'' crocea 5'' the maxima and 1 crocea are on the oppisite side of the tank from the tunzebut this pump puts out a lot of flow i have them up 3/4 in the tank do you think i...