ok to leave this in then?...dont tell my i have wasted 44 days!!my fluval U2 has a sponge with 1 grey side and one black..i take it this is a carbon sponge?
forgot about fluvals, yes it will be carbon
ok to leave this in then?...dont tell my i have wasted 44 days!!my fluval U2 has a sponge with 1 grey side and one black..i take it this is a carbon sponge?
forgot about fluvals, yes it will be carbon
ok to leave this in then?...dont tell my i have wasted 44 days!!my fluval U2 has a sponge with 1 grey side and one black..i take it this is a carbon sponge?
forgot about fluvals, yes it will be carbon
I bought Supreme Clean Clear Ammonia. Ingredients are Ammonnium Hydroxide and Surfactant. Is this ok to use?