Hello guys been dealing with bad GHA outbreak as I was away for 3 months and came home to forest in my tank. It's a 320 gal stock with 13 small fish largest is about 5" ( 2 blue hippo ) my ro filters was shot and tank sitter did not test so was toping of RO with around 18tds. Have done 2 large water changes over last 2 weeks and manually removed 95% of it and running lights off now for 3 days. Tested tank today and found Nitrate at 17.3 and phosphate at 0.22 using Hanna testers. Am I ok now to bring back the lights on blues only and set lower and bring back up over 2 weeks?
Sorry for the long winded message.
Sorry for the long winded message.