Description
No3
Source of pure nitrates, the appropriate level of which is necessary for the proper growth of corals.
In a closed aquarium ecosystem, parameter swings are pretty often. An efficient filtration system or an overdose of nutrient-reducing media can result in a sudden reduction in nitrate levels. Too low of a concentration can slowdown coral growth or worse cause permanent damage.
AF NO3+ is a product that increases the level of nitrate in marine aquariums. The problem of too low NO3 most often affects aquariums with a large number of corals and a small number of fish. AF NO3+ is a source of pure nitrates, the appropriate level of which is necessary for the proper growth of corals. The concentration of nitrates is strongly dependent on the level of phosphates in the water. Before attempting to raise the NO3 level in the aquarium, check the PO4 concentration. The ratio of nitrogen to phosphorus should be 16:1. Keeping it in such proportions allows you to maintain an appropriate chemical balance in the tank and protect it against increased algae growth.
AF NO3+ is a product of the Aquaforest Lab line created for aquarists who want to have full control over the parameters in their tank. Before use, we recommend that you test both NO3 and PO4 levels and dose them gradually until the desired nitrate level is achieved.
The product is in a convenient and safe package, for use in a marine aquarium.
Dosage:
1 ml of AF NO3+ added to 100 l of aquarium water increases the level of nitrates by 0.5 mg/l (ppm)
The maximum recommended daily dose is: 1 ml/100 l of water
The optimal nitrate (NO3) value for a reef aquarium is 1-4 mg/l (ppm)
Check nitrate levels frequently and only dose when nitrate levels are too low
Make sure the nitrate level is correct and you are using a reliable test kit
Product intended for professional use only
***You may find out whether your aquarium water contains harmful substances or needs supplementation through this AF ICP Test 1 and understand more about Aquaforest Lab for your corals.
#NO3, #No3
Aquaforest NO3+ Lab: Raising Nitrate On An Ultra-Low-Nutrient Reef
It sounds backwards to add nitrate, but on heavily filtered modern reefs it’s a real need, and this 200ml NO3+ Lab is a clean source for lifting it. Tanks with lots of coral and few fish, or those running aggressive nutrient-export media, can bottom out to undetectable nitrate, which starves zooxanthellae and leaves corals pale or browned out. A controlled nitrate source restores the trace level corals actually require to colour and grow.
We see this often on tidy Singapore SPS systems where skimming, GFO and carbon dosing all pull in the same direction. The fix is gentle: dose small amounts, re-test, and aim for a low but measurable reading rather than chasing a high number. Because our tanks run warm and biologically active, nitrate can move faster than expected, so verify with a reliable kit before and after each addition.
Browse the full water testing and care range, and read our guide to raising saltwater nitrate with our marine test results guide to dose with confidence.

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