Hi All it's been a while since I asked for some help setting up this Nitra-guard on my African cichlid tank, now I have a Nitrate level of 5ppm, never had it that low. My PH is steady at 8.2 and Nitrite and Ammonia is 0. I have been reading on your site that saltwater tank keepers have a low Nitrate level don't change their tank water for a long time, my question is how often should I change my Cichlids water now it had a low Nitrate level
Steve
Steve