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Tropical GH and KH hardness test kit packaging

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Tropical Test Aquarium Test Kit

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TropicalSKU: 1VTK010

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Size: NO2

Price:

£17.85 £18.79

Quantity:

%3Cp%3EEarn%20[points_amount]%20when%20you%20buy%20this%20item.%3C/p%3E

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Tropical aquarium drop tests provide straightforward monitoring of essential water parameters in freshwater and marine aquariums. Choose the appropriate variant for nitrite, nitrate or general and carbonate hardness.

Accurate, easy-to-read aquarium water tests

NO2: measures nitrite from 0–3.3mg/l; healthy established aquariums should read zero
NO3: measures nitrate from 0–100mg/l to help manage water quality and unwanted algae
GH/KH: titrimetric test for general and carbonate hardness in aquariums and ponds; each reagent drop equals one German degree

Follow the enclosed instructions, add reagent as directed and compare the result with the supplied scale or colour-change endpoint. Regular testing is particularly useful in new aquariums, after treatments and when caring for species with specific water requirements.

🚚 Delivery & Collection

✅ FREE Standard Delivery on orders of £79 or more.
🚚 Standard Delivery — £4.99: Usually within 2–3 working days.
❄️ Frozen Food Delivery — £9.99: Applies to orders containing frozen food.
🏬 FREE Click & Collect: Usually ready within 2–3 working days from our Nottingham store.

⚡ Need It Faster? Priority & FAST TRACK

Look out for the ⚡ FAST TRACK badge on products physically stocked at our Nottingham store or warehouse.

🚚 Priority Delivery — £5.99: Usually delivered within 1–2 working days on eligible orders.
⚡ Fast Track Delivery: Usually delivered the next working day when ordered before 2pm, Monday–Friday.
🏬 Same-Day Collection: Fast Track products can be collected today during opening hours. Contact us to arrange.
🛒 Need something else today? Many products without the Fast Track badge may also be available for same-day collection. Just ask!

Please Note:

Fast Track Delivery is only available when every item in your basket is marked ⚡ FAST TRACK.
Orders placed after 2pm, or on weekends and bank holidays, will normally be processed the next working day.
All delivery services are subject to availability and your delivery postcode. Available options and charges are confirmed at checkout.
Delivery times are estimates, not guarantees. Please wait for confirmation before travelling to collect an order.

Delivery Zones & Restrictions

UK mainland delivery only. Excludes Northern Ireland (BT), Channel Islands (GY, JE), Isle of Man (IM), Isles of Scilly (TR21–TR25) and international addresses.
Orders over 5kg or 60cm in length may be restricted in:London: E1, EC, SE1, SE11, SW1, WC, W1Isle of Wight: PO30–PO41Scottish Highlands: AB35–38, AB54–56, FK18–21, IV1–IV63, KW1–KW14, PA21–PA38, PA80, PH17–PH26, PH30–PH41, PH49–50Scottish Islands: HS1–9, KA27–28, KW15–17, PA20, PA41–49, PA60–78, PH42–44, ZE

Collection Only Items

Some products are marked Collection Only and cannot be delivered.
📍 Collect from: Internet Reptile, Unit 10 Quayside Court, Road 2, Colwick, Nottingham, NG4 2SR.
Please wait for confirmation that your order is ready before visiting.