Xin You Biochemical Mat Aquarium Filter Sponge XY-1866 Marineland Visi-Therm Submersible Aquarium Heater With 2 in 1

<Features> With 2 in 1 functions as CO2 bubble counter and check valve

suitable for freshwater and saltwater

you just need to put the three posts in the corresponding position and tighten the crews by using a screwdriver

*L-Carnitine (min): 550 mg/kg

Whether your furry friend loves to observe or prefers privacy

Xin You Biochemical Mat Aquarium Filter Sponge XY-1866 Marineland Visi-Therm Submersible Aquarium Heater <Features> With 2 in 1Aquarium filtering replacement: though the filter cushion is simple in design, it's so practical when you use it. Water filter mat: manufactured with superior materials, practical and for a long term use. Filter sponge: made of material, it doesnt interfere with your tank's other accessories. Aquarium filtering replacements: high water penetration efficiency and no water accumulation, convenient to use. Aquarium accessory: it is for both freshwater