Lol, what kind of shrimp do you have? If you have too many, I'd be willing to take a few off of your hands!
I don't think you can ever have too many. I have cherrys, cherrys, and more cherries. I do ship stuff in summer usually cheaply. I can't when its 10*F out, so you enjoy your sun
. I was cleaning the canister filter on my 55gal and netted at least 20 of them out of it last night. Thats what happens when you don't use a prefilter. I honestly don't know how many there are, they are in all my tanks. Roughly 90 gallons. There are A LOT of them, thats all I know.