Built in filter - just carbon pad.
TetraTec internal filter for biological and mechanical filtration (including wool for quick removal of sand)
1 Puffer Fish
This tank was originally a plush planted nano tank but algae took a hold pretty quickly so I scrapped all plants and decided to set it up for my puffer fish with sand as a substrate and a few slates from the local slate tip. The puffer seems pretty happy in there with not much to look but I may see if I can find some bogwood suitable for brackish water. The jar on the left of the tank is a 'Snail Hatchery' - special food the the puffer :)