API Reef Master Test Kit Brand_Redbarn Pet Products fits neck size 5" to

fits neck size 5" to 7" and waist size 7" to 9"

12% Phosphorus min

Will also raise the carbonate alkalinity

and arachnids

minimum 18

API Reef Master Test Kit Brand_Redbarn Pet Products fits neck size 5" toThe REEF MASTER TEST KIT tests 4 key parameters to keep reef inhabitants healthy. The kit is highly accurate and economical, and includes 7 bottles of liquid test reagent, 2 computer calibrated, laminated color cards, 4 glass test tubes with snap tight caps, holding tray, as well as complete, step by step instruction booklet, including information on how to correct unsafe water conditions. Tests Calcium, Carbonate Hardness (KH), Phosphate, and Nitrate