I am glad your shrimp are all fine. I just wanted to add that I have used Genchem No Planaria in all my tanks over the last few months and have not had any dosage related deaths in shrimp, even after dosing for double the period of time recommended ( CRS, TB, OEBT, Blue Dream, GB, Rili ). I have also not done the water changes they recommend with the last dosages as I had surviving Planaria if I did a WC after dosing. I have to add that I run chillers and two airlines per tank to keep the O2 levels high. WC recommended if you do not run a chiller or more than one airline. The No Planaria also eradicated Hydra permanently. I have not had any Planaria in my tanks for months, but I suspect eradicating all Planaria have now caused the Ostracods to take over, as their population has boomed- I suspect the young/ eggs might have been eaten by Planaria...now I have messed with the food chain and am paying for it. When I do not have baby shrimp roaming around, I will unleash my beasts! ( actually two docile and completely harmless corys with a taste for seed shrimp ;)