TetraTec GC Gravel Cleaners are a simple and easy way to clean the gravel in a aquariums.
Over time, dirt will accumulate in aquarium gravel and sand, potentially leading to pollution of the environment. It is important to keep the substrate reasonably free from dirt, and the easiest way to do this is with a Tetra Tec GC gravel cleaner.
Rather than having to take the gravel out of the aquarium, the GC allows you to suck up dirt during the course of a normal water change, or as a separate procedure.
GC 30 = 20-60 litres
GC 40 = 50-200 litres
GC 50 = 50-400 litres