Hi there had a couple questions regarding water changes.I have a 50 gallon tank with a large pleco and a bumble bee cichlid.Right now I'm doing water changes biweekly changing approx 25-30 percent.Just bought a test kit it tells me ph 7.6 ammonia 0 nitrite 0 and nitrate 80 ppm.Can someone tell me if these results are good or bad.Also I have a aqua clear 110 filter how often or if ever should I rinse the sponge.Thanks for any help.
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