The 2Hr Aquarist APT Fix – Algae Treatment

2Hr Aquarist APT Fix

APT Fix is the stronger APT algae-treatment option; the manufacturer recommends targeted spot dosing rather than indiscriminate whole-tank dosing.

Best for

BBA; hair/string/fuzz algae; filamentous algae; hardscape and established robust plants

How to use

Pause filter briefly for direct contact; manufacturer states up to 1 ml/10 L and an 80% water change if exceeded.

Technical information

3% proprietary formula of Epoxy Adelhydes

Composition: Proprietary algae-treatment formulation

Important

Avoid delicate mosses and plants; do not spot-dose directly on livestock; maintain good oxygenation; if the limit is exceeded, follow the manufacturer’s water-change instruction.

Related APT products

APT FIXLITE, APT Pure, APT 3

Manufacturer: The 2Hr Aquarist. Technical information verified against the official manufacturer page on 2026-09-28.