Bought some new fish today, my son obviously got over excited as I nipped upstairs for a wee and returned to find he had put loads of the new food into the tank (micropellets for neon tetras) plus some of the old flakes (dont know how much of the flakes he put in as he just told me that (I couldn't see any) but loads of the pellets are floating on the surface still
What do I pleas?