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similar to a scorpion’s threat display
Strategically designed rack openings increase water flow to corals from all directions
Calcium min
Birds love the cushiony soft fabric
Hanna HI784 Marine Low Range Ammonia checker Birds similar to a scorpion’s threatHanna Instruments has added a saltwater specific ammonia tester to its popular checker lineup. Joining the existing freshwater High, Low, and Medium range ammonia checkers this latest device for saltwater is low range, measuring ammonia levels from 0. 00 to 2. 50 ppm (mg L). Reefers rarely test for ammonia but mobile inverts and marine fish may have maximum tolerances of as low as 0. 03 0. 08 ppm, and as pH increases, so does toxicity. The new checker
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