Description
Quantum Tropical / Community pH Pro 1L — Litre of pH Regulator for Large Community Displays and Ponds
Large community displays and garden ponds hold a lot of water, and a weekly pH dose on them is measured in tens of millilitres. Quantum Tropical / Community pH Pro 1L (SKU: QA381000) is the litre size of a solution of safe pH salts in deionised water, formulated to regulate pH and replicate the near-neutral water of tropical lakes. Left unregulated, the pH of a tank or pond moves with every feed, every rainfall and every change, and the inhabitants pay for it in the efficiency of their biochemical processes. It works with Tropical/Community KH Pro and Tropical/Community Pro Salt GH, over a neutral substrate.
The dose is 10 mL per 100 L once a week, or as required, to hold pH between 6.5 and 7.5, used as a maintenance supplement, with only the replacement volume dosed at a water change. A 500 L display takes 50 mL a week, so a litre covers about twenty weeks at the full rate and longer where the tank only needs it fortnightly; a 2,000 L pond dosed weekly uses the litre in five weeks, so pond keepers often step up to the 5 L container.
Usage & Application
When to Use
- Large community displays: Tropical tanks of 400 L and more kept near neutral.
- Small ponds and tubs: Outdoor systems where rain and leaf litter push pH around.
- Shrimp rooms: Breeders dosing many small tanks from one bottle each week.
- Multiple community tanks: Fish rooms with several tropical aquariums on the same weekly routine.
Dosing & Administration Guide
- Weekly rate: 10 mL per 100 L, or as required, for a pH of 6.5 to 7.5.
- Read the tank first: A quick pH test decides whether the weekly dose is due or can wait.
- Water-change dosing: Condition the new water before it goes in and leave the tank’s volume out of the sum.
- Keep KH and GH in step: Tropical/Community KH Pro and Pro Salt GH alongside.
Product Specifications & Highlights
Key Features
- Tropical pH band: Safe pH salts holding 6.5 to 7.5 across tanks and ponds.
- Litre for large systems: Around twenty weeks of weekly regulation on a 500 L display, or several smaller tanks.
- Maintenance approach: A weekly hold on pH beats correcting a crash after it happens.
- Manufacturer substrate advice: A neutral substrate is recommended for tropical community tanks.
- System partner: Runs with Tropical/Community KH Pro and Pro Salt GH.
Product Details
- Brand: Quantum (Freshwater Essential range)
- SKU: QA381000
- Barcode (GTIN/UPC): 0735204321650
- Product Type: Additives & Supplements > Freshwater pH Buffer
- Net Volume: 1 L
- Contents: Deionised water, safe pH salts
- Dose Rate: 10 mL per 100 L once a week or as required; during a water change, dose only the volume replaced
- Target Range: pH 6.5–7.5
- Companion Products: Tropical/Community KH Pro; Tropical/Community Pro Salt GH
- Support: Free Quantum Aqua dosing app with instructional videos
- Target Environment: Pond, shrimp and tropical community aquariums


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