Interesting, I had heard the reverse, that Bayer is not harsh (but hazardous to deal with), with Potassium Chloride being very effective (and seemingly the preferred choice for acro specific pests now), not hazardous, but potentially more harsh to corals.Always dip!!!!
Potassium Chloride for acros. 1 tblspoon per gallon. Bayer can be harsh on some acros.
I had been using Bayer but trying to decide if just Coral Rx is good with SBB (I already only dip any non-acro in just that), I don't like dealing with Bayer and the waste. But frankly it feels like I should look at Potassium Chloride to ensure I am covering acro bugs!
Anyway, I really only temp acclimate prior to dipping.