This is a fantastic product, so I wanted to give a review as I feel that there has been a misrepresentation here. This is a very “potent” Heterotrophic bacteria. It is imperative to go slow, especially if the system has never seen it before. The bottle says 1/2 dose initially. If you want to be totally safe with “SPS or Acropora” specifically…dose 1/8 the dose. Go slow and understand this product before you ramp up. IMO, I’d never dose more than 1/4 the full dose in one day. It’s better to dose smaller more frequent doses than larger less frequent doses. If you go slow and use caution you will not have issues.

It can be a strong bacteria. I only use 1 cap on my 100g when needed. Test your water before dosing to make sure your Phosphates and Nitrates are NOT zero before dosing.

have been using waste away for two months and have noticed gunk around my rocks and power heads no longer there so far so good thinking of using re fresh also

The product itself works, but be aware that even a slight overdose will wipe out your entire tank

Added this to battle some brown gunk in my tank. By the 2nd dose, all of my SPS were dead/almost dead. Did a large water change hoping to save them and that's a TBD. Parameters are within reason, and Waste Away was the only thing added. While I'm sure it works, I'm certain this was the reason my SPS took a massive hit. Hoping that since I've since stopped using it, they will recover. As they say, if the coral has a polyp, it ain't dead.