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API pH Down 4 fl oz — Nano pH Acidifier for Freshwater Aquariums - API
$9.99
Available
API pH Down 4 fl oz — nano pH acidifier for small aquariums
The API pH Down 4 fl oz is the nano format of the API pH acidifier, sized for small freshwater aquariums (nano tetras, discus, Amazon fish). Lowers pH gradually per the dosing chart on the bottle.
Specifications
- Brand: API
- Format: 4 fl oz (118 ml)
- Type: liquid pH acidifier
- Compatibility: small freshwater aquariums
How to use
- Dose per the bottle chart (typically 1 ml per 5 US gal).
- Wait 24 h and retest before the second dose.
- Never drop pH more than 0.2 points in 24 h to avoid stressing fish.
Why get this from ReefSolution
- API pH Down 16 fl oz — standard size for larger tanks.
- API Freshwater pH Test Kit — monitor during adjustment.
- API pH Up 4 fl oz — nano raiser for the opposite.
Frequently asked questions
What aquarium size does this nano format cover?
Up to about 40 L — beyond that, the 16 fl oz size is more economical.
Can I use API pH Down on a reef aquarium?
No — this is a freshwater adjuster. On a reef marine tank, use controlled CO₂ or kalkwasser to adjust pH.
Telephone: 1 450-669-9256
Email: sales@reefsolution.com