heavy flow good or bad for clams?

[badbadfishy]

25 gallon. a couple snails, 1 clown, 1 dotty and one angry coral banded.
i bought live rock about 9 pounds and one has clams (and i have a baby one, which i was shocked) they are my first clams bedises my fire clam (died for no good reason) and are embedded in the rock i have feed them, kept up calcium, all that jazz. but just bought a canister fluval (304 the one reccomended for 70 gallon) that i got a steal on for 40 bucks from a friend. so i set it up added some extra chem filtration some bio foam ect ect. so i know a majority of clams like the tidal zone but where they are i cant really move them without losing my kelerpa collections that ive formed. so with such a high gph in such a small tank gives me great flow but im wondering if its to much for my clams because they are right next to the out flow?

 

[Hzuiel]

Without knowing species even an expert(i am certainly not one) won't be able to give you a definitive answer, but bivalves are filter feeders and generally like good flow. They're often found clustered near drains so heavily divers often have to chisel all the various sorts off. My guess would be they will be fine.