I don't think the product worked,I just think you've cycled naturally. I'm a
sw newbie but
fw experienced and the N-cycle is essentially the same for both.
If you're reading 0-0-almost 0 (N-
NO2-
NO3) then you're there.
As for the damsels, frankly, how sophisticated is the nervous system of a 1" fish? Get real. The thought that they feel pain and suffering like mammals, especially humans, is ludicrous. Next thing you know, aquarists will say your corals need a counsler because they were nipped on! After that, some coral lawyer will sue you for pain and suffering - ha!