I have 2 different tests for nitrate?? One is in the good range...0 and the other is pretty bad at like 2.0. Which one is more correct? Which one is more dangerous? My tank could be still cycling. It has been in its current state for 4 months now, at least. It is 125 gal. I have done one 20% water change 4 weeks ago (not by choice but the tank overflowed, big mess, wife mad- you know the drill) With 100lbs of live rock - today I added another 100lbs. I have a sump, but I am short on the nitrate eating plants. I have 5 mangroves in my overflow enjoying the "sun" and growing nice roots.
Headed out of town and I am worried sick. I have added a couple new fish today too. and for the first time it might be a little full. Can you have too much rock? It looks cool but I cannot see my little fish. They are enjoying hiding in the rocks.