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They also have a toxin in their dorsal fin rays which may cause a welt like a wasp sting
hang-on-back filters
Move the rack slowly if repositioning so coral frags do not fall and the glass is not scratched
LED lamps: 2 x 12W
The Edge Max is built for larger aquariums and thicker glass or acrylic where a standard-size cleaner may not provide enough magnetic grip
Hanna Magnesium Checker Substrates & Decor They also have a toxinHanna Magnesium Checker The Hanna Magnesium Checker HI783 is a marine handheld colorimeter designed to measure magnesium from 1000 to 1800 ppm in saltwater aquariums. It provides a digital magnesium result for reef keepers who want easier, more repeatable testing than traditional colour comparison or titration style magnesium kits. HI783 Marine Magnesium Testing Magnesium helps stabilize the relationship between calcium and alkalinity in reef
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