I am currently feeding brine shrimp to everything in my tank but I don't know if I'm doing it right. I thaw out a bunch of it and then feed them threw a syringe. after I get what I need I put it back in the fridge, not the freezer. I do this for days at a time. is this okay? How should I feed them? my anemones' are depending on it. they are already looking bad. thanks.