So, shield over vigor? I already have GH up, grow and color. Any other recommendations?
You can use both but I'd go with SHIELD definitely. I use it with each water change and it works great....had zero shrimp deaths since I've started to use it. Click on my name and search for threads that I created...there is a HUGE one about BorneoWild Reviews....everyone chooses Shield as well.
I have these so if you have questions then let me know...I also posted my dosing regiment in the thread that I'm referencing above. Clay is a great guy by the way so he'll take care of you.