Lime Wood Air stones are used to diffuse air into micro bubbles. Suitable for in tank protein skimmers and other applications where micro bubbles are required. The tiny nature of micro bubbles eliminates the noise associated with the furious bubbling of conventional systems.
The original method of protein skimming, running pressurized air through a diffuser to produce large quantities of micro bubbles, remains a viable, effective, and economic choice, although newer technologies may require lower maintenance. The most popular wooden air-stones for skimmers are made from limewood like these ones; although basswood, works as well. The wooden blocks are drilled, tapped, fitted with an air fitting, and connected by air tubing to one or more air pumps delivering at least 1 cubic foot per minute. The wooden air stone is placed at the bottom of a tall column of water. The tank water is pumped into the column, allowed to pass by the rising bubbles, and back into the tank.