WARNING: Please refrain from soaking this box in vinegar or citric acid altogether. The acid can dissolve the bonded joints. Protect your tank occupants with zero flow blockage cage/box. These reef safe box are made from marine safe PETG material and are designed to stop anemones and small tank mates from getting sucked into and stuck inside your wave makers or getting harassed from current tank mates. Large holes allows full water flow with no dead zones. The top is removable and the box is being held in place by 2 pairs of strong magnet bars Size 9.5 (240mm) x 6.5 (164mm) x 5.6 (142mm) Can be printed in Neon green, black, orange, white and translucent filament. allow 2 days if the color is not in stock.