How to control Green water algae in a planted tank
August 05, 20191 min read
This form of algae is also known as "green pea" soup. The water turns into a cloudy green colour.
The primary cause is excess ammonia coupled with strong light for extended periods. This may occur particularly in new tanks / planted tanks that are not biologically mature. It often results from over-feeding, high levels of livestock waste and/or plant decomposition. It is more common in very warm tanks (80f+).
Some mild cases disappear on their own as the tank matures
Immediately lower light intensity (by increasing the distance of the light source from the tank or adding shades) and reduce lighting-period to 5 hours until problem disappears
Mild cases can be cured by over-dosing Excel (which can hurt both livestock & plants) or by using Purigen as filtration media
Staghorn algae appear as thick grey hairs on the edges of leaf margins. They can be hard to remove by hand. They differ from BBA (Black brush algae) in that BBA has a finer texture and usually darker color.
Filamentous algae includes hair, fur, fuzz, thread algae. All these have common trigger factors and tend to attach to damaged or stressed plants. Healthy, well maintained planted tanks should be completely free of filamentous algae.
Diatoms, also known as brown algae, appear as brown patches on plants. Brown algae is common in new setups for the first couple of weeks. Often, brown algae or diatoms can go away without much intervention as the tank matures. Read on to find out how to remove brown algae or diatoms from planted tank.
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