Twinstar 900SA ver. 4.2 Adjustable Leg/Pendant 90-100cm (36 in) LED Light Fixture Category_SW Additives & Conditioners Fluval BioMax rings have a

Fluval BioMax rings have a complex porous design that ensures optimal contact time as water passes by for efficient biological filtration and beneficial bacteria growth

Treatment If the bottle has a dropper cap

X-Large size is made for use in aquariums 60 - larger gallons in size

Integrated drawstring closure

Attracts these birds:  Cardinals

Twinstar 900SA ver. 4.2 Adjustable Leg/Pendant 90-100cm (36 in) LED Light Fixture Category_SW Additives & Conditioners Fluval BioMax rings have aTWINSTAR LIGHT VER. IV LED (SP SERIES) PENDENT TYPE: The (S series) is the latest line of 24", 36" & 48" LED's released by Twinstar. A higher light output makes it one of the strongest leds for planted tanks on the market right now. Available in three different body widths to best accommodate various tank sizes. Product Highlight: New S series Ver. III increased the RGB LED ratio, which makes the color of plants more enhanced in both Red and Green hue