Poppy Glasses are inflow (V) and outflow (P) pipes designed for an external canister filter. The unique shape of the inflow and outflow sections can gently adjust water flow without placing burden on water intake. Inflow Poppy Glass (V) is a glass inlet pipe suitable for an external canister filter such as Super Jet Filter. Used with Outflow Poppy Glass (P), it creates water flow suitable for keeping fish that prefer gentle water flow, such as betta and killifish, in an aquatic plant layout. Depending on the placement of the outflow pipe, the water surface ripples adequately and provides aeration and a shimmering effect with a metal halide lamp.