xiggie Posted January 28, 2015 Share Posted January 28, 2015 Btw the guy from LFS told me that if both no3 and no4 is zero all corals will die off But the guys in this forum say no3 and no4 at zero most corals will be happy. Quote Stairway to Heaven Link to comment Share on other sites More sharing options...
SRC Member asg Posted January 28, 2015 SRC Member Share Posted January 28, 2015 All coral need some level of NO3 or PO4 to grow. Since most of us are using hobbyist level test kit, although the reading is undetectable, there is bound to be some level of NO3 PO4 present in the tank. Even for SPS tank, the recommended level of PO4 is 0.03 and NO3 is 5-10ppm. Having too clean a water and you risk your coral die out of the blue after months. Quote 子非鱼,焉知鱼之乐... (you are not the fish so you...) Then: my 4FT low tech selling off tank... (2006) Now: (2014) @Sept 2014 Link to comment Share on other sites More sharing options...
SRC Member sgtayc Posted January 28, 2015 SRC Member Share Posted January 28, 2015 Yes LFS also say test kits cannot be totally trusted.....but they still need to sell them lol Quote Link to comment Share on other sites More sharing options...
SRC Member asg Posted January 28, 2015 SRC Member Share Posted January 28, 2015 test kit can at least give an indication lah Quote 子非鱼,焉知鱼之乐... (you are not the fish so you...) Then: my 4FT low tech selling off tank... (2006) Now: (2014) @Sept 2014 Link to comment Share on other sites More sharing options...
lenenkie Posted January 28, 2015 Author Share Posted January 28, 2015 Hi lenenkie i read the thread and thot u r doing a test on dsb but u also add other nitrate export methods so u end up not knowing whether the dsb works or not. U have thot of gettinh nitrate up agsin and redo the testing? Yeah you are right All coral need some level of NO3 or PO4 to grow. Since most of us are using hobbyist level test kit, although the reading is undetectable, there is bound to be some level of NO3 PO4 present in the tank. Even for SPS tank, the recommended level of PO4 is 0.03 and NO3 is 5-10ppm. Having too clean a water and you risk your coral die out of the blue after months. Although I measure zero, i still have some algae growing which requires me to clean my glass about 1-2 times per week. Hence its probably undetectable by the test kits rather than being truly zero. Agreed that its not about zero nutrients, but rather having low nutrients, enough sustain growth of your corals and minimise nuisance algae growth Quote Link to comment Share on other sites More sharing options...
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