NT LABS Marine Lab Phosphate Test - 40 Tests

What is phosphate?

Phosphate is an essential component in fish nutrition, but is also produced as a waste product by fish. Phosphate is practically non-toxic to fish, but excess phosphate can cause unwanted algae and will inhibit coral growth.

Why test for phosphate?

Maintaining a low level of phosphate is essential for reducing unwanted algae and maintaining coral growth rates. Phosphate tends to accumulate as an aquarium ages, so regular monitoring of phosphate is required to determine the health of the aquarium.

What is the correct level of phosphate?

Phosphate in natural seawater generally varies from 0.01 mg/l to 0.06 mg/l (in terms of phosphorus) in reef areas. However, in a reef aquarium, aim for 0.03 mg/l to maintain good coral growth and keep nuisance algae at to a minimum.

What to do if the phosphate level is wrong?

Regular maintenance and use of partial water changes with a good quality reef salt should help to keep phosphate low. To remove additional phosphate, use of Phosphate Remover in your filter or add Anti-Phos liquid regularly to instantly remove phosphate.

How to test for phosphate?

• Using the syringe provided, add approximately 5 ml of water to the glass test tube. Cap the test tube and shake briefly to wash the test tube. Uncap the test tube and discard this water.
• Add 10 mL (2 x 5 ml using the syringe) to the test tube. 3. Add 10 drops of Phosphate-1 Reagent.
• Add 10 drops of Phosphate-2 Reagent.
• Cap the test tube and shake well to mix.
• Wait for 5 minutes for the colour to develop.
• Once the 5 minutes has elapsed, uncap the test tube. View from the top and compare to the colour chart to determine the amount of phosphate present in the water.

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Next Day Shipping cut off is at Noon/12:00pm

Orders after that time will be processed the next working day

Please Note: Certain ponds, aquariums, all pond plants, and all livestock are excluded from free delivery.

The blue highlighted area on the map below is where we deliver on our own vehicle. Unfortunately, if you are not in one of these postcode zones we are unable to deliver certain items such as plants, small glass items and selective other products.

We offer a few different delivery options depending on the size and value of your order.

Certain orders over £50 qualify for free mainland UK (excludes Northern Ireland, Pond Plants, and livestock) delivery which will arrive within 3-5 working days of the order being processed.

Orders Below £50 in Mainland UK will be charged a standard delivery fee of £5.99.

Pond Plant and Tropical/Marine/Pond Livestock will be charged a delivery fee of £19.99.

Additional Shipping Charges

For any orders that do not include Aquariums, the below is charged:

Next Working Day Parcel Delivery to Mainland UK - £7.99 OR £2.99 if the order is over £50 (excludes Northern Ireland)

Standard Parcel Delivery to Northern Ireland £8.99

Standard Parcel Delivery to Scottish Highlands & Islands £9.99

Standard Parcel Delivery to Jersey & Guernsey £12.99

For all Aquarium, Medium - Extra Large Terrarium/Vivarium/Paludarium deliveries (Excluding biOrbs & Smaller Aquariums), the below is charged:

You must be present for delivery and please check your item before signing for delivery.

A payment link will be sent to you if redelivery is required.

Next Working Day Pallet Delivery - £20

2 Hour Booking Slot Pallet Delivery - £20

Pallet Delivery to Northern Ireland - £45

Saturday and OptiClear 90 & 120 Delivery - £60

Pallet Delivery to Isle of Wight (PO30 and Above) and Scottish Highlands (AB, PH, IV1-36, IV, KW1-14, KY, PA21-41) - £45

Pallet Delivery to the Scottish Isles (KA27-28, PA60-90, ZE, JE, GY, IM, IV40-56, KW15-17, PH42-44, PA20, PA42-49) - £120

Pallet Delivery to Outer Hebrides (HS) - £140

Pond's over 1000 litres will be a curb side pallet delivery.

Aquariums over 125 litre will be a curb side pallet delivery.

The couriers we use are Royal Mail, DX, APC, and UPN.

Standard Delivery

Northern Ireland Standard Delivery

Next Day Delivery

Cut off is Noon/12:00pm

Saturday Delivery

Cut off is Noon/12:00pm

Livestock Delivery

Cut off is Noon/12:00pm

Plant Delivery

Cut off is Noon/12:00pm

Standard Curb Side Pallet Delivery

Cut off is Noon/12:00pm

Next Day Curb Side Pallet Delivery

Cut off is Noon/12:00pm

Saturday Curb Side Pallet Delivery

Cut off is Noon/12:00pm

Northern Ireland Curb Side Pallet Delivery