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✓Price
$23.99
Home/Pet Supplies/Fish & Aquatic Pets/Aquarium Accessories/Water Quality Testing & Treatment/Water Treatments
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pH/KH Plus for Freshwater Aquariums – ARKA pH Increase 236 ml – raises pH & carbonate hardness gently – with electrolytes & slime coat support – stabilises soft water & prevents pH crashes
★★★★★
$23.99
Quantity
1
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About this item
- Safely increases pH & carbonate hardness – ideal for soft water, KH instability or CO₂ fluctuations – prevents pH swings & promotes a stable, healthy environment for freshwater fish
- With protective electrolytes – reduces osmotic stress after water changes or CO₂ loss – supports gill & skin health – ideal for delicate fish species in planted aquariums
- Gentle formulation for sensitive fish – ideal for discus, dwarf cichlids & other soft-water species – protects mucous membranes & internal organs during pH adjustment
- Ideal for pH stabilisation, hardness boosting & new tank setups – can be used with ARKA pH Decrease & Buffer 6.5/8.5 – easy, precise dosing for consistent results
- Premium ARKA water care – developed in Germany for advanced freshwater aquarists – proven in breeding, aquascaping & soft water tanks – safe, reliable & residue-free
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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