I put in a bunch of these earlier this year from these guys. There are a LOT of shrimp in the gallon.
I saw survivors for a few weeks here and there, but haven't over the summer.
What was the actual result? I have no idea. My guess is that I don't have a population even though I way overstocked. They might be in some of my dense vegetation, but I haven't seen any. Not sure of the water temperature issue.
Did it help get the BG off to a good start early in the year? Maybe. Was this a nice nutritional change vs Aquamax and other bugs? Probably. Did they seem to absolutely love eating them? Absolutely. Was this like putting fathead into a bass pond? Pretty much. Snack snack snack.
Regardless, my BG were very happy and have already been begging me to place an order for next year.