Fish Science pH Reducer

Fish Science pH Reducer is a freshwater aquarium conditioner designed to bring pH down gradually and predictably, without the sharp swings that stress soft water species. If you're keeping tetras, discus, rasboras, or dwarf cichlids, precise water chemistry management is non-negotiable — this is the tool for it.

How It Works

Rather than forcing a rapid drop, Fish Science pH Reducer lowers aquarium pH in controlled increments, giving fish time to adjust without physiological shock. It is formulated for freshwater use and works within measurable, repeatable parameters.

Suitable Species

Soft water tropical fish are particularly sensitive to pH that sits outside their preferred range. This conditioner is well suited to aquariums housing tetras, discus, rasboras, and dwarf cichlids — species that thrive in lower, stable pH conditions that many standard tap water supplies don't naturally provide.

Dosing Guide

Add 5ml per 50 litres of aquarium water to achieve a reduction of approximately 0.1 pH. Test pH daily and repeat dosing gradually until your target is reached. Avoid rushing the adjustment — incremental changes are always safer for livestock.

Key Features

• Gradually lowers freshwater aquarium pH
• Reduces risk of stress caused by sudden water chemistry changes
• Ideal for soft water tropical species including discus and tetras
• Controlled, measurable dosing at 5ml per 50 litres
• Suitable for freshwater aquariums

Used correctly and alongside regular testing, Fish Science pH Reducer gives you reliable control over one of the most important parameters in a soft water setup.