Blog: Maintenance

A scum layer forms when there is too much protein in the aquarium. This buildup accumulates on the water's surface and is caused by overfeeding, overcrowding, dead rotting fish, or poor filtration due to bacterial death. By addressing these causes and changing the water, the scum layer disappears.

If you've kept Anubias in your aquarium for a while, you've probably heard of black Anubias rot (or even had it). What is this black mold? Where does it come from? And how can you prevent it? We'll explain it all in this article.