Negative Pressure Acrylic Fish Tank Topper for Aquariums

This negative pressure acrylic fish tank topper mounts on the rim of your aquarium and holds water above the waterline, creating a raised viewing chamber where fish can swim up into open air space for a striking aquascape display.

• Size: 5.1 x 4.7 x 7.5 in (13 x 12 x 19 cm)
• Capacity: About 0.5 gal (2 L)
• Material: Clear, sturdy acrylic
• Fit: Clamps to tank walls 0.16–0.75 in (4–19 mm) thick
• Included: Chamber, 3 fixing brackets and screw
• Note: Not suitable for fish that gulp air at the surface, such as bettas and gouramis

Typical delivery 7–15 business days.