Tip: If you do not use up the entire bag
Onyx Sand is most effective when used alone as an integral substrate bed
allowing accurate temperature adjustments from 20°C to 33°C (68°F to 91°F)
are available as individual tests in the JBL program
Phosphates are non-toxic to fish and most invertebrates
API Reef Master Test Kit tools Tip: If you do notThe API REEF MASTER TEST KIT tests 4 key parameters calcium, carbonate hardness, phosphate, and nitrate to keep reef inhabitants healthy. Testing is fast, easy, and accurate, yielding precise results, and comes with 4 glass test tubes with snap tight caps and a convenient holding tub for easy, reusable storage. This kit also includes a complete, step by step instructional booklet with a colour chart that provides information on how to correct unsafe