Join Date: Mar 2011
Location: College Station, TX
Not a gripe here, but that sure seems like a lot of tanks running in your signature to just now be discovering high nitrates. Anyhow. I agree those nitrates are incredibly high. There are some chemical filtration products that absorb nitrates I believe. At this point, I would add as many floating plants as you can (frogbit, water lettuce, salvinia, duckweed, ect). If your tap water is that high, I would honestly consider getting an alternative water source going. Your plant mass can help some, but not that much. Your best bet would be to get a RO/DI unit from bulk reef supply and a large container to store fresh water in. With the number of tanks you have you might want to get one if those really big plastic water drums. That would all be fairly pricey and space hogging though. That is a tough break about your tap water though. Have you contacted your city water company to find out why the high nitrates? That's all I've got. Someone else may chime in.