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When there are insufficient areas of a tank which are deprived of oxygen (anaerobic zones) or denitrification is not taking place properly
Chemi Clean will effectively remove many different strains that can be formed by cyanobacteria (red slime)
Add a regent to your water sample
hang-on-back filters or overhead/trickle filters
Hanna Instruments ULR Phosphate Reagent HI774-25 tgr When there are insufficient areasThe HI774 25 are the replacement reagents for the HI774 Phosphate Ultra Low Range Checker HC. These high quality reagents are manufactured in our state of the art facility and are clearly marked with the lot number and expiration date on each packet for traceability. Good for 25 tests