I rate these one step above useless. The Koralia Gen 3 pumps will not replace the current line of Koralia but will instead represent a higher performance tier, and somewhat higher cost.

Very disappointed and will be returning them. They are weak at best. Higher performances, lower energy consumption and quick and easy maintenance are the main features of the Koralia 3G series. I tried all the guards and the diffuser. Koralia 3rd Generation 2450 Wave Pump - Hydor $84.49 The new Koralia Third Generation is super compact, energy efficient and is ideal to recreate the natural and … The Koralia 1350 will carry an MSRP of $95, the Koralia 1950 will cost $105.76 and the largest in the new line the Koralia 2450 will carry a suggested retail price of $118. Try like 500 if that.

Koralia 3G – Third Generation is the new innovative and unique range of circulation and wave pumps, designed especially to work in reef aquariums. Koralia 3G. The patented Dual Magnet Support System (DMSS) allows the user to position t Koralia 3G - Third Generation is the new innovative and unique range of circulation and wave pumps, designed especially to work in reef aquariums.Higher performances, lower energy consumption and quick and easy maintenance are the main features of the Koralia 3G series.The new exclusive Hydor design and technology guar I purchased two Hydor Koralia 3rd gen 2450s. They are no where near 2450gph. Hydor Koralia 3G Third Generation Circulation and Wave Pump - 2450 gph The new Koralia Third Generation is super compact, energy efficient and is ideal to recreate the natural and beneficial water motion of rivers and seas.