Plus NP is a balanced source of nitrogen and phosphorous alongside a specialized carbon source that fuels beneficial bacteria growth. It is designed to increase nitrate and phosphate levels in ultra-low nutrient systems and can be used in conjunction with Tropic Marin NP Bacto-Balance and Elimi-NP to create one of the easiest and safest carbon dosing solutions. 

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How To Use Plus-NP

Plus-NP does contain a source of carbon alongside nitrates and phosphates and is designed for those special instances where phosphate and nitrate levels need to be increased.  Whether you are intentionally running an ultra-low nutrient system (ULNS) or just accidentally allowed your nutrient levels to drop below detectable levels via the use of carbon dosing additives, Plus-NP will solve your problem.

Test phosphate levels in your aquarium, Plus-NP is designed to be used in situations where phosphate is undetectable or <0.01 ppm.  Nitrates are likely going to be very low as well but should you find nitrates are elevated, a few extra water changes will help lower those nitrates to a reasonable level.

  • Daily Dosage: 1ml per 26 gallons of aquarium water.

Dose Plus-NP daily per dosage above. Add to a high flow area of the tank, like into a powerhead or return flow.  It is best to dose in the morning, just after your lights have turned on but you can safely dose Plus-NP anytime throughout the day. 

Test your phosphate levels every few days until you have reached your target phosphate level: 0.05ppm Phosphate. Once you have reached your target phosphate level, you can switch over to NP Bacto-Balance to maintain the Tropic Marin Carbon Dosing Method described below. 

Tropic Marin Carbon Dosing
  1. 200 mL Plus-NP - Tropic Marin
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    200 mL Plus-NP - Tropic Marin
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  2. NP-Bacto-Balance - Tropic Marin
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  3. Elimi-NP - Tropic Marin
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Tropic Marin Carbon Dosing

Tropic Marin has designed a unique and comprehensive carbon-dosing solution that involves three different additives. The specialized carbon source contained in all three additives targets ONLY beneficial, phosphate-loving bacteria. You will not run the risk of promoting growth among annoying algae or harmful microbes like you get with other carbon-dosing products. 

  • Elimi-NP: Lowers phosphate and nitrate levels. Carbon Souce + Zero Nutrients
  • NP Bacto-Balance: Primary additive. Maintains low phosphate and nitrate while also providing sufficient - balanced nutrients to prevent starving your tank. Carbon Source + Balanced Nutrients
  • Plus-NP: Increases phosphate and nitrate levels. Carbon Source + Extra Nutrients

Step #1 - Use either Elimi-NP or Plus-NP to adjust your phosphate levels to the ideal range: 0.05 ppm phosphate.  If your levels are high, use Elimi-NP or if your levels are very low or undetectable using hobby grade test kits, use Plus-NP.

Step #2 - Once you have tested phosphate in the ideal range, switch over to dosing NP Bacto-Balance which will then provide both a sufficient carbon source to support the bacteria as well as critical levels of nitrogen and phosphorous to avoid starving your corals. Continue with NP-Bacto-Balance moving forward to lock in those optimal levels of nitrate and phosphate without having to constantly worry about adjusting your dosage or feeding harmful organisms.

Step #3 - Test your phosphate levels weekly. Should you start to see levels rise or fall again in the future, discontinue NP Bacto-Balance.  Switch over to either Elimi-NP or Plus-NP accordingly to get back in balance before continuing again with NP Bacto-balance.

SPS Corals

The result will be ideal balanced levels of phosphate and nitrate. You will not need to constantly battle nutrient levels or make frequent adjustments to dosage and will not run the risk of starving out your tank when used as directed.

Focus on testing for phosphate when dialing in your dosing but monitor nitrates as well. Nitrate levels should be maintained at <1.0 ppm or a similar low range. You can take additional measures (filtration, water changes, etc.) to lower nitrates should they be extraordinarily high for any reason. 

**Pro Tip: Carbon dosing focuses on bacteria that consume phosphates, which is why you see a drop in phosphate. That bacteria is then consumed by your corals and other invertebrates as an optimal source of nutrition, providing phosphates they could not normally acquire in your tank. This increased nutrition within the corals and inverts then promotes a higher metabolic rate which results in a higher uptake of nitrates. This is how the nitrates are lowered. Just remember bacteria lower phosphates, corals lower nitrates.

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