Filter Sock: 7" x 16" FELT w/ Draw String Glass Cleaners Three-dimensional flow - A unique

Three-dimensional flow - A unique patented design is unrivaled in creating three-dimensional flow conditions and gyres

Tropic Marin Pro Reef Salt mix contains optimized levels of calcium and magnesium while keeping the correct pH value and a balance of all 70 trace elements required by corals to grow and thrive

but also for finicky eaters like sea horses and mandarins

Compatible with all Apex models

Previously known as Algae Buster

Filter Sock: 7" x 16" FELT w/ Draw String Glass Cleaners Three-dimensional flow - A uniqueThese 200 Micron filter socks are used to remove small floating particles from aquarium water. This can dramatically improve water quality and reduce maintenance on filters that would otherwise become clogged. The draw string attaches directly to plumbing for almost any sump configuration.