Matala USA debuts the Matala Air Diffuser Platform with Disc Diffuser. Designed for ponds or lakes, the hollow air base must be weighted with sand or gravel and the rubber membrane diffuser comes in 9- and 12-inch diameters. The discs add less than 6 inches of back-pressure, according to the manufacturer, and the base with diffuser comes in eight configurations for air flows from 1 to 25 cubic feet per minute. (MSRP starts at $92) Posted on 7/13/11.

Lifegard Aquatics releases re-engineered Quiet One Pumps with new packaging, performance specs and flow controls. Pond pump models include protective pre-filters, a three-pin 20-foot cord, fittings and spray nozzles, while fountain pump models feature a three-pin 20-foot cord and pre-filter grill with flow control, according to the manufacturer. (Prices unavailable.) Posted on 7/12/11.

Rolf C. Hagen Inc. releases the Laguna SkimAway Filter. The 9.5-inch by 9.5-inch by 13.3-inch filter features an aquatic plant basket, a geyser-style fountain, LED submersible lights, a faux-wood finish and a removable lid. Designed for ponds up to 500 gallons, the filter uses a 200 gph pump and a series of coarse and fine filter foams for mechanical and mechanical/biological filtration, the company reports.(Prices unavailable). Posted on 10/27/10.

PondBuilder Inc. unveils the IllumiGlow 3-watt LED Light for in or out of the water. The light features a 30-foot cord, a screw-tight rubber gasket facing and a hard resin body with mounting bracket. (MSRP $111.99) Posted on 10/27/10.

Rolf C. Hagen Inc. unveils Laguna UV Sterilizers in three models for different-sized ponds. The sterilizers feature a quick-reference LED indicator to show when a UV lamp is working, simple access to the UV bulbs and a spiral chamber design, the company reports. Choose from 14 watts, 28 watts and 55 watts. (Prices unavailable.) Posted on 10/6/10.

Boulder Looks launches the Rock Box Propane Tank Cover. The faux-rock cover fits over standard 250-gallon propane tanks and features an articulated lid that rolls back when needed, according to the manufacturer. The cover measures 44-inches high by 33-inches deep by 94-inches wide and comes in five custom stone colors. (MSRP $2,195) Posted on 9/1/10.

Aqua Bella Designs offers two fountain trees designed as garden accents. Choose from the Custom Made Japanese Maple Fountain Tree (MSRP $3,239) and the Custom Made Weeping Willow Fountain Trees (shown) (MSRP $959-$1,344). Posted on 8/11/10.

Airmax Eco-Systems offers Twilight Blue Pond and Lake Dye. The concentrated blue/black pond dye is designed for large ponds and lakes. One concentrated quart treats 1 acre with water 4- to 6-feet deep, according to the manufacturer. Other colors include Nature’s Blue and Black DyeMond. (MSRP $29.99) Posted on 8/11/10.