Brown Aquarium Fish. You might be wondering why your aquarium has changed colors. If your aquarium water has turned yellow or brown there could be something wrong with your tank.
85 cm 33 in Ochre-striped cardinalfish. When setting up a new aquarium it is normal for brown formations to appear on the walls and in the water. In this case the reason is the uninhabited environment.
Want to learn how to clear clo.
Typically tank water is clear and without color. Brown algae in fish tank environments are catalyzed by poor aquarium husbandry. If your aquarium water has turned yellow or brown there could be something wrong with your tank. The fish looks drained often afflicted by secondary bacterial and fungal infections the eyes are bulging and ulcers are formed on the body and internal organs.