stonedaquarium Posted November 5, 2015 Report Share Posted November 5, 2015 hi guys... would like to ask for some help and advice as to how to control my nitrates inside my tank... this tank has been working fine then just at random i checked my nitrates and it was reading around 60 to 80 ppm.... i did a partial water change of 35% and added purigen to my tank and some water lettuce and Gota kula floating plants to suck up most of the nitrates... but this morning after a 35% WC my nitrates are still reading high about 40 to 60 ppm... i have a couple of questions: 1) should i do another major water change in the next day or so... im hesistant as this sudden major water changes might further stress my shrimp... 2) how long would it take for purigen to suck up the nitrates in the water... mind you im using only sponge filters and i placed the purigen on top of the air outflow of the sponge filters to there is sufficient water movement that is hitting the purigen... ( i noticed that the purigen is starting to turn brown...) how long before i need to recharge the purigen.... ( its running inside a 20gal tank for about 2 days now) 3) should i add more plants? if so what other plants are nitrate hogs? 4) would bacteria additives work? such as mosura de nitro? what other alternatives are there to mosura denitro? Many Thanks Quote Link to comment Share on other sites More sharing options...
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