Seaoura SR-702A Small Internal Aquarium Filter Plug:AU Plug such as debris and leftover

such as debris and leftover food

B indicator blinks

or 12 Hours

A2: Only the 31

10 Level Brightness

Seaoura SR-702A Small Internal Aquarium Filter Plug:AU Plug such as debris and leftoverAbout this item Dual Core Filtration System, Visibly Clear Water Quality Adopting a dual filtration design of physical filtration + biochemical filtration, it achieves layer by layer purification to efficiently trap impurities and stabilize the aquatic ecosystem. High quality biochemical cotton features a ribbed design that significantly increases the filtration surface area, accurately filtering and absorbing fish feces, leftover bait, debris, and