Evolution Aqua PURE+ Filter Start Gel Size:2.5 Liters Check valves are essential when

Check valves are essential when using a waterfall filter in conjunction with a pond skimmer

4 algaecide and Microbe-Lift® PL liquid water clarifier together for a powerful

use air stones rather than these diffusers

5 Ultima II 10

5" Check Valve Adapter for Aquasurge pumps 29511 827807295114 2" Check Valve Adapter for Signature Series™ 6

Evolution Aqua PURE+ Filter Start Gel Size:2.5 Liters Check valves are essential whenPURE+ Filter Start Gel is a live, concentrated bacteria culture for jump starting bacteria cultivation in biological pond filters. This gel based solution sticks to the filter media, allowing nitrifying bacteria to rapidly colonize the filter. This bacteria will mature your filter, helping to convert toxic ammonia and nitrite into nitrate, resulting in less stress to fish. Perfect for bead filters, filter matting or other biological media Features