What is the effect on LPS corals? I have some ginormous wall hammers and frogspawns. Has anyone noticed issues with them when treating with fluke tabs?
I had a 30 gallon frag tank in the same system as my 300 when I treated, and I saw no effect on RBTAs, chalices (LPS), zoas or meat corals (LPS). No hammers or frogspawns, but I don't think it would hurt them either.
Please don't take this as fact, but it seems that one defining characteristic regarding negative effects of Fluke Tabs on corals is whether the coral secretes a calcareous skeleton or not, outside of zoanthids/palys/anemones not being affected either. Calcium carbonate skeleton secreting corals don't seem to be affected by Fluke Tabs.
Just from my own anecdotal experience, and that of others I know have used them:
Fluke Tabs kill: anthelia, xenia, clavularia, feather dusters, leathers.
Fluke Tabs may possibly kill: snails or shrimp.
No effects: SPS, LPS, Anemones, zoas, palys, fish.
Long term issues after treatment: You may not be able to keep anthelia, xenia, or clavularia for years after treatment due to residual chemicals on the treated live rock. This may or may not include leather corals, but that has yet to be determined.