WATCH me breed Amano shrimps! https://www.youtube.com/watch?v=c91vXktRfHMSometimes no matter how much you try to "balance" yourtank, including water changes...
Greendustalgae, or GDA, is a dustalgaethat generally collects on your glass, hardscape and sometime even our plants leafs. This is probably the most commonalgaewe see in the hobby. It should not be confused with analgaebloom, which is where yourtankswater turnsgreen.
Algaecome in many forms, and each type requires specificcontrolmethods. Hereβs a quick guide to the types ofalgaeyou might encounter:GreenAlgae: Known as "greenwater" or "pea soup," this type ofalgaecan cloud thetank, turning it a murkygreen.
Greendustalgae(GDA) usually appears as a thingreenfilm on the glass walls of atank. In severe cases, it can form within a few days. In less severe cases, the glass needs to be wiped down every week or two.
Algae-controlmethodsinfluence temperature both directly and indirectly. Somemethodschange the amount of heat entering the water, while others change oxygen demand and biological activity, which can make fish and corals more sensitive to even mild thermal swings.

Struggling with fuzzygreengrowth in yourreeftank? This post explains how to safely get rid ofgreenhairalgaeusing simple, effectivemethods. From water testing to manual removal and long-term prevention, every step is covered for beginners and experienced aquarists alike.
How to Prevent &ControlAlgae. 1. Black BeardAlgae(Audouinella/Black BrushAlgae/BBA). A type of redalgae(Rhodophyta), BBA is more common in saltwater setups, but can also appear in freshwatertanks.