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We use an API Freshwater Master Test Kit to test ammonia, nitrites, nitrates and pH, and to confirm the accuracy of the pH controller. We use a Nutrafin One 15 mL (0.5 fl oz) Bottle of pH High Range reagent; One Glass test tube with cap; One Pipette; One Lab base; One Instruction booklet Effectively measures the pH level in your aquarium in the 4.5 – 9.0 range to help maintain correct pH levels and safe, healthy water conditions · Weekly testingThe Nutrafin pH High Range Freshwater Aquarium Test Kit offers a full equipment: test pipette; glass test tube and cap, lab base, instruction booklet. One Lab base; One Instruction booklet. Suitable for freshwater or marine aquariums to establish the right pH range for your fish (7.4-8.6); Monitors ammonia