Are grass shrimp any more hardy than other crustaceans? If so, why?
I've had two fish in quarantine with Cupramine. The copper level measures .45 ppm with a LaMotte Smart2 Colorimeter. I feed some live grass shrimp to the fish in my DT every week or two. Three weeks ago I thought I'd toss a few in the QT to see if those two fish had any interest in them. (They didn't.) Two days ago I took down the QT and found six grass shrimp living happily in it. Shouldn't the copper have killed them?
I've had two fish in quarantine with Cupramine. The copper level measures .45 ppm with a LaMotte Smart2 Colorimeter. I feed some live grass shrimp to the fish in my DT every week or two. Three weeks ago I thought I'd toss a few in the QT to see if those two fish had any interest in them. (They didn't.) Two days ago I took down the QT and found six grass shrimp living happily in it. Shouldn't the copper have killed them?
