JBL ProAquaTest NH4 Ammonia & Refill

$9.86 ~~$13.89~~ In stock

Category: Aquarium Water Test

JBL Pro Aqua Test NH4 Ammonium / Ammonia

JBL Aquarium Water Test Kits & Refills

Simple and reliable monitoring of ammonium (NH4) and ammonia (NH3) in aquariums/ponds. Checks the biological balance (bacterial activity) in freshwater and marine water
Laboratory comparator system to compensate the inherent water colour: fill glass vials with sample water, add reagents to one vial, place vials in holder, read values off colour chart and table
Use: when setting up a new freshwater aquarium: once a day. Initial setup with marine water: once a week. For use in case of fish diseases or fish deaths.
You will find detailed information and troubleshooting tips about water analysis on the JBL website in Essentials/Aquarium or Pond
Package contents: 1 quick test, ammonium test NH4 for approx. 50 measurements. Incl. 3 reagents, 2 glass vials with screw caps, syringe, comparator block and colour scale. Reagent refill separately available

Available:

Complete Test Kit
Refill

Confirm the order

Check the specification, quantity and total at checkout.

Before work begins

Factor in processing and transit time when planning your order.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy

Refund requests

Use your order reference when explaining the issue to the store.

Please contact us for the refund processing timeframe before returning an item.

View policy

Delivery for your items

Check the destination and shipping charge before payment.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy

Sending an item back

Ask the store for instructions before packing and returning the item.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (5.0 / 5 · 4 reviews)

Eli ★★★★★ Oct 21, 2026

After losing a few fish earlier this year, I finally got serious about monitoring the nitrogen cycle. This test makes checking ammonium and ammonia levels clear and straightforward, even for a beginner. It’s given me peace of mind knowing my water’s biological balance is stable.

Lily ★★★★★ Oct 20, 2026

I test my water weekly and this ammonia kit gives clear, easy-to-read results every time. The refill option is perfect for keeping costs down, and it catches ammonia spikes before my fish get stressed. Exactly what I needed for peace of mind with my planted tank.

Andrew ★★★★★ Oct 19, 2026

I was worried about my new tank cycling, but this test kit gives clear readings down to 0.2 mg/l, which helped me track the ammonia spike. The refill option is a nice money-saver since I'll need to test regularly.