Cart
Aquatop Forza Power Filter 5-15 - Up to 15 gal
×
API High Range pH Test Kit FW/SW
×
API Reef Master Test Kit
×
API Ammonia Test Strips 25ct FW/SW
×
API pH Test & Adjuster Combo Kit FW
×
Flipper DeepSee Orange Lens Filter 4"
×
Continuum AquaBlade P Acrylic Blade 3pk
×
API pH Down Prof. Size 16oz
×
AquaTop 9w Submersible UV Clarifier
×
API Ammo Lock 8oz
×
Aquatop SkyAqua 18-24" Adjustable LED Light
×
API Saltwater Master Test Kit
×
Reefbrite 36" 50/50 LumiLite LED Strip
×
API Marine Magnesium 16oz
×
API pH Up 4oz
×
Flipper DeepSee MAX Magnetically Mounted Magnified Aquarium Viewer 5" (127mm) Orange Filter Lens
×
Reefbrite 60" Blue LumiLite LED Strip
×
API pH Test Strips 25ct FW/SW
×
API pH Down 4oz
×
API Proper pH 6.5 Powder Small
×
Eheim 200w Sub Heater
×
Danner HY-Drive 4000gph WaterFall Pump
×
API Freshwater Master Test Kit
×
ESV 1 Gal B-Ionic Calcium Buffer Concentrate - Alkalinity
×
API Phosphate Test Kit FW/SW
×
API 5-in-1 Aquarium Test Strips 25ct FW/SW
×
Continuum AquaBlade P Acrylic Blade 30pk
×
Cart
Aquatop Forza Power Filter 5-15 - Up to 15 gal
×
API High Range pH Test Kit FW/SW
×
API Reef Master Test Kit
×
API Ammonia Test Strips 25ct FW/SW
×
API pH Test & Adjuster Combo Kit FW
×
Flipper DeepSee Orange Lens Filter 4"
×
Continuum AquaBlade P Acrylic Blade 3pk
×
API pH Down Prof. Size 16oz
×
AquaTop 9w Submersible UV Clarifier
×
API Ammo Lock 8oz
×
Aquatop SkyAqua 18-24" Adjustable LED Light
×
API Saltwater Master Test Kit
×
Reefbrite 36" 50/50 LumiLite LED Strip
×
API Marine Magnesium 16oz
×
API pH Up 4oz
×
Flipper DeepSee MAX Magnetically Mounted Magnified Aquarium Viewer 5" (127mm) Orange Filter Lens
×
Reefbrite 60" Blue LumiLite LED Strip
×
API pH Test Strips 25ct FW/SW
×
API pH Down 4oz
×
API Proper pH 6.5 Powder Small
×
Eheim 200w Sub Heater
×
Danner HY-Drive 4000gph WaterFall Pump
×
API Freshwater Master Test Kit
×
ESV 1 Gal B-Ionic Calcium Buffer Concentrate - Alkalinity
×
API Phosphate Test Kit FW/SW
×
API 5-in-1 Aquarium Test Strips 25ct FW/SW
×
Continuum AquaBlade P Acrylic Blade 30pk
×
| Weight | 1.25 lbs |
|---|---|
| Dimensions | 2.375 × 2.375 × 8.5 in |
API MARINE MAGNESIUM raises and restores magnesium levels in your reef aquarium, and should be used whenever magnesium deficiency is present in your water. The magnesium level of a reef aquarium should be between 1,250 – 1,450 ppm. Use API MARINE MAGNESIUM when water tests show a magnesium level below 1,250 ppm mg/L in your reef aquarium. Dose according to directions on product label. Treats up to 948 US gallons of salt water. With API Aquarium products, it’s easy to keep a beautiful saltwater, freshwater or reef aquarium. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your fish and aquarium. API Aquarium Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as tropical community fish, cichlids, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your tank. Make sure to use all products as directed in order to ensure the best results.











