Join Date: Jul 2013
Location: Cornfields, Central Illinois
Are you running a Fluval Edge as a shrimp tank? I'm doing the same, myself.
As for the overdose/toxicity argument, I actually dose a full 5 mL twice a week. I also inject CO2 while my light is on. Otoh, the tank is well-lit, heavily-planted (as in filled with plants) and high tech. I pulled the carbon out of my filter a week ago and added more biomedia. I fertilize micros once a week.
I don't really test or change water as the plants soak everything up, in my experience. I've been running this plant for about three months, only.
I did have two shrimp die in the last week, which was very disquieting. One four days ago, one last night, both low-grade males. I'm watching for a trend, as there are saddled and berried females (all high-grade PFR).