Okay more questions...came home to dose second copper amount. Decided to check water parameters. My nitrites are off the chart!! But no ammonia detected. I have test kit and ammonia badge, as I know copper can give false readings for ammonia. I changed out 4 gal in 10 gal. Nitrite reading still really high. Any ideas? It's only been running 3 days. I wouldn't expect such high numbers so soon. Tested my display as a control (zero reading).