So I’ve been cycling my tank with fish and a coral and adding nitrifying bacteria for 8 weeks now. I tested the ammonia: 0, tested the nitrites: 0, but my nitrates also look like 0. Granted, I’m using the API tests with the test tubes and I have a Hanna nitrate tester coming today, but I kind of want to put in some macroalgae. How long do you think it will take to build up some nitrates to support that?
