Yep that's the one I'm using
That has lots of other stuff in it besides aminos. My guess is something else is causing you grief. Get "acro power " if you want just aminos
Right now after this catastrophic event I'm thinking again about using aminoacids, probably I'm not gonna use them again ever but I was wondering why this happened to my tank.
What you're overlooking is the product you were using wasn't amino acids, it just among a ton of other things also contains a small amount of amino acids. Some of those other things bleached your corals because dosing things you can't test for is usually not a good plan and now you've learned why that is. Your catastrophic event had 0.000% to do with amino acids.
I wouldn't dose that product again. Unless you run an ultra low nutrient system with 0 No3 and 0 Po4 you probably lay won't benefit from aminos anyway.