bigmike015 Posted October 7, 2013 Share Posted October 7, 2013 How often do I change my gfo and carbon? Link to comment Share on other sites More sharing options...
jestep Posted October 7, 2013 Share Posted October 7, 2013 Carbon probably monthly if it's ROX. GFO when PO4 starts to creep up again, depends on the tank nutrient load. Could be anywhere from a month to 3 or 4. Link to comment Share on other sites More sharing options...
bigmike015 Posted October 7, 2013 Author Share Posted October 7, 2013 Ok, then i guess its time for carbon and guess i better check the PO4 too, just to make sure Link to comment Share on other sites More sharing options...
bigmike015 Posted October 7, 2013 Author Share Posted October 7, 2013 What should the po4 be around? Link to comment Share on other sites More sharing options...
victoly Posted October 7, 2013 Share Posted October 7, 2013 depends on what you're keeping. For SPS i like to be in the 0,02 to 0.04 range. LPS/softies can go considerably higher. Link to comment Share on other sites More sharing options...
Bpb Posted October 8, 2013 Share Posted October 8, 2013 I've been changing my rox every two weeks and gfo monthly like clockwork. Even though I have a bit of stubborn nuisance algae I've kept this regiment for 9 months of use now and have pretty good, but pale, sps colors and super slow zoa and Lps growth. This past week I missed my carbon change. Started a new job. Put in 70 hours the first week. Just didn't have time. Colors are night and day better it seems. Maybe it's just because I've been too busy to have my hands in the tank. I'll definitely be backing off on my carbon changes though. Link to comment Share on other sites More sharing options...
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