Coral Tank Parameters

One of the most frequent questions we get are what levels should I keep to grow corals in my tank.  Here is a chart showing Red Sea suggested levels depending on the type of corals you're keeping in your tank.

 

	Soft Corals	Mixed Reef	SPS Dominant	Frag Tank	Ocean
pH	8.1 -8.3	8.1 - 8.3	8.1 -8.3	8.1 - 8.3	8.1 - 8.3
Salinity	34 ppt/ 1.024 SG	34 ppt/ 1.024 SG	35 ppt/ 1.025 SG	35 ppt/ 1.025 SG	1.025 - 1.027 SG
Calcium	450 ppm	450 ppm	430 ppm	465 ppm	420 ppm
Magnesium	1350 ppm	1350 ppm	1280 ppm	1390 ppm	1280 ppm
Alkalinity	11.5 dkH	11.5 dkH	8 dkH	12 dkH	7 dKH
Nitrate	5 ppm	2 ppm	0.25 ppm	2 ppm	< .1 ppm
Phosphate	0.1 ppm	0.1 ppm	0.02 ppm	0.1 ppm	.005 ppm