Red Sea Algae Control Pro Multi Test Kit


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Red Sea Algae Control Pro Multi Test Kit
Available in selected stores only
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  • Easy to use liquid tests
  • High accuracy colorimetric comparator tests 
  • Includes 200 tests
  • Tests for Nitrate and Phosphate levels, the main causes of unwanted algae growth
  • Suitable for marine aquarium use only

Red Sea's Algae Management products offer a complete test and treatment solution for the control of nitrate and phosphate levels, correct management of these can reduce nuisance algal blooms and boost coral growth and colouration. 

The algae nutrients (Nitrate and Phosphate) are biologically reduced naturally in all anoxic areas of the aquarium, such as inside live rocks, porous filter media and substrates. Regular measured dosing of Red Sea NO3:PO4-X can boost and control these natural processes. This algae management program provides an easy and reliable method to control nitrate and phosphate levels, this in turn reduces the presence of nuisance algae and the population of the symbiotic zooxanthellae algae which are essential for most corals. 

Red Sea's Algae Control Pro Multi Test Kit is a high accuracy colorimetric comparator test for the exceptionally accurate measurement of nitrate and phosphate levels. The nitrate and phosphate tests are essential for dosing NO3:PO4-X. 


Test Name Element Accuracy Range Test Type Number of Tests
Nitrate Pro NO3 0.125ppm 0-64ppm Comparator 100
Phosphate Pro PO4 0.02ppm 0-5ppm Comparator 100

Red Sea Algae Control Test Kit R21520 729010072126

Element Accuracy Range Test Type Number of Tests
Nitrate Pro NO3 0.125ppm 0-64ppm Comparator 100
Phosphate Pro PO4 0.02ppm 0-5ppm Comparator 100


Delivery costs for your order will be calculated during the checkout process based on your delivery address and the contents of your basket. You will only pay one delivery charge for your order. Express delivery is FREE for online orders OVER £39 unless any of the points below become a factor.

  • Some large items like aquariums, ponds and pond liners will have an additional charge of £45.00 to help offset the cost of a pallet delivery.
  • Orders containing a physical gift card will have an additional charge of £2.45 to cover the cost of materials and delivery (digital gift cards are a free alternative).
  • Orders to highlands, islands and Northern Ireland may incur an additional delivery charge displayed at checkout this is based on the postal code provided. DPD provides a list of postal codes which have additional surcharges. Some of these post codes may also take 2 working days to arrive, even on express. Pallet deliveries cannot be sent to these post codes.

We only ship to the UK and cannot ship internationally.

We aim to dispatch items that are currently in stock on the same working day if they are ordered before 2.45 pm (excluding Bank Holidays). Orders after 3pm will be dispatched the following working day, unless it fits any of the below criteria:

  • Orders containing live plants will take up to 2 weeks to arrive. We take a week's worth of customer orders and then inform the plant farms of the specific quantities we need to fulfil that week's order to avoid wastage.
  • Pallet orders containing large items like big aquariums will take additional time to arrive as they are sent by a third party. These orders will NOT be dispatched until we have been in touch to arrange a delivery date, this is to ensure someone is available at your address to sign for the delivery. Deliveries will generally be delivered ‘curb side’ within the terms of the agreement we have with our couriers so you will need to make arrangements to transfer larger items into your home yourself. Unfortunately, our drivers are not insured to transfer the aquarium into your home.
  • Physical gift cards and items from the gift shop (such as clothes, towels etc) are sent with 1st Class Royal Mail. Delivery usually takes 1-2 working days, though in rare cases and orders placed closer to public holidays (Christmas, Father’s day, Mother’s day etc.) may be longer.


If you are not 100% satisfied with your purchase online from our website, you can return the product and get a full refund or exchange the product for another one, for up to 21 days from the date you purchased it.

We strongly suggest signing up for an account with as this will allow for some additional returns options like return to your local store.

If you checkout as a guest you will need to return the product to Maidenhead Aquatics, PO Box 619, Egham, Surrey, TW20 2BS, please package the order (along with a packing slip or a note including your name, address and order number).

Large pallet items like aquariums are deemed delivered successfully with no damage once the the driver has left the property. If a report of damage is submitted after the driver has left we may be unable to assist with replacements. We recommend refusing a damaged delivery, this is the fastest resolution.

Our full terms and conditions can be found here. When you place an order with us online you are agreeing to these terms and conditions.

For delivery before Christmas, orders must be placed on or before 3pm on Wednesday 20th December. We cannot guarantee delivery of these orders pre-Christmas as we are reliant on our couriers, but will use our best endeavours to get orders placed on this date out to you before Christmas. For full details of our festive delivery and opening times click here

Please note: online orders placed after 3pm on Friday 22nd December will not be dispatched until the New Year. For full details of our festive delivery and opening times click here