JBL PROAQUATEST GH Refil

JBL PROAQUATEST GH Refill – General Hardness Reagent Top-Up

Keep your hardness testing routine running with the JBL PROAQUATEST GH Refill. This replacement reagent restores your kit’s capacity to measure general hardness (GH) in dGH, helping you maintain the right mineral balance for fish, plants, and invertebrates in freshwater aquariums.

Why choose the refill?

• Cost-effective: Replace only the reagent you’ve used—no need to buy a full kit.
• Less waste: Reuse your existing test vial and instructions.
• Accurate & repeatable: Fresh titrant for consistent results.

What’s included

• Replacement GH titration reagent

Note: This is a refill pack. It does not include a test vial/cuvette or instruction leaflet. Use with your existing JBL ProAquaTest GH kit.

How to use (with your existing kit)

1. Fill your original JBL vial to the mark with sample water.
2. Add one drop at a time of the GH refill reagent, swirling gently after each drop.
3. Stop at the distinct colour change.
4. Reading: Number of drops added = GH in dGH (e.g., 6 drops = 6 dGH).
5. Record the value and adjust maintenance if needed.

Pro tips

• Test GH weekly and after large water changes.
• Keep technique consistent (sample volume, drop size, mixing) for repeatability.
• To raise GH, use suitable remineralising salts or blend RO with harder tap water.

FAQs

Does this refill work for saltwater?
GH testing is primarily for freshwater and RO remineralisation checks.

Is a colour chart or vial included?
No. Reuse the accessories from your original JBL GH kit.

What if my GH is too low?
Increase GH gradually with remineralising salts or adjust your RO/tap mix, then re-test.

Maintain stable mineral levels easily with the JBL PROAQUATEST GH Refill.