I have a 12gal tank 9 lbs of live sand 12 lbs of live rock. nothing else in tank my nitrates ready seems to want to stay at 40 I have did many water changes and nothing seems to help.
nitrites 0
ammonia 0
alkis in normal range
ph 8.2
hydrometer reading 1.021
tank has beening running for a month :anxious
nitrites 0
ammonia 0
alkis in normal range
ph 8.2
hydrometer reading 1.021
tank has beening running for a month :anxious