Atlantic Water Gardens Basalt Columns filter media This product is harmless to

This product is harmless to all nitrifying bacteria and aquatic plants

Small remote drivers 18" from light decrease heat and pull through 1" sweeps

heavy duty underlayment

The AV40HB has a flow rate from 1

MPN: 73794

Atlantic Water Gardens Basalt Columns filter media This product is harmless toMPN: 91802, 73778, 73779, & 73780 Attractive natural stones are drilled to create overflowing water features Hexagonal pillars have a sawn base for stability and snapped top that emphasizes the stone Volcanic basalt oxidizes to form attractive multi colored patina over time Atlantic's Basalt Columns are generously core drilled to 1. 375" to fit up to 1" Sch 40 PVC or 0. 75" kink free tubing plus a light cord A 2" diameter, 5" deep socket at the top