i just added my 1st fish to tank, 4 damsels and a dusk blenny, i feed them spectrum marine, which is one of the best pellet foods over here, i chuck a few pellets in and they grab one or 2 each if they can b4 it hits the gravel, but once it is on the floor they dont seem to touch it, not like my fw fish they will eat every last bit off the floor, my gravel is white so they should be able to see the pelets, although theres a bit of grass type algae but they should still be able to see it. is this the norm for these fish or are they grabbing the food later when im not looking?