While healthy plant mass is the #1 natural defence against algae, life is often unpredictable.
The filter or CO2 diffuser gets clogged. Grandpa overfeeds the fish. The auto-timer takes an unannounced holiday.
These shocks ( seemingly insignificant to us) weaken plants and give algae a window of opportunity to spawn.
APT Fix works to rebalance the system by targeting the fundamental weakness of algae- their comparatively less developed protective cell walls. When spot-dosed per the recommended dosage, it instantly arrests algae growth while allowing plants to recover.
This is an effective approach for removing algae on hardscape: wood and rocks. Avoid this method for plants.
This is our usual approach to treat algae on plants. To increase effectiveness, pause the filter before spot-dosing. And don’t forget to turn the filter back on! Avoid this method for treating algae on Mosses, Liverworts (Riccardia and Riccia etc.) and Vallisneria (Tape Grass).
The above shows the result of a single dose of APT Fix via spot-dose method. By Day 2, the inactive BBA would usually change color to red and/or white. These would either decompose, or serve as food for algae-eaters and other microorganisms. By Day 7, the leaf is now mostly free of algae.
The above shows the result of a single dose of APT Fix via the drain-dose method. By Day 2, the hair-algae has lost some of its green color. By Day 5, all the hair algae has been deactivated. You can remove it completely using a fine brush.