My clams get fed until the DT's run out. Damn that stuff is expensive. $40-60 per month for DT's. I think I will just buy one big bottle per month. Clams and other filter feeders will have to deal with the cut back.
Thought about setting a phyto culture station. Sounds like too much work. Rotating bottles, checking dates, more maintenance.
Jared,
Tell your friends regular fish food (e.g. flake, formula 1) will not feed their clams. Someone is sadly mistaken.
Clams are specialized feeders (ammonia, nitrates and phytoplankton).