Extremely quiet but very powerful air pumps

For aquariums up to 16 UK gallons/75 Litres or double with two powerheads.

For aquariums up to 25 UK gallons/113 Litres or double with two powerheads..

Recommended Aquarium (1 PH) 190 L 42 U.S. Gal. - (2 PH) 380 L 84 U.S. Gal.

Reverse Flow Operation - Both forward and reverse water flow.

Foam cartridge for Powerhead.

Designed to stimulates corals and avoids stagnant areas forming.

This is a pioneer book about breeding marine tropical fish.

 This book offers the hobbyist incredible pictorial information.