Fluval U3 Underwater Filter rawhide Calibrated to a 21 degree

Calibrated to a 21 degree room

Treating pond fish for ulcers

Key features: Effectively traps dirt & debris

releasing the gentle active ingredients

trace elements and amino acids to help support health and vitality

Fluval U3 Underwater Filter rawhide Calibrated to a 21 degreeFrom the Fluval range. U series: u3 internal filter. 3 stage filtration: Foam pad removes large particles (replace every 6 months), Poly carbon cartridge traps fine debris & removes impurities (replace every month), Bio max provides optimal biological filtration efficiency (replace every 6 months). Features: Adjustable 3 way flow: Top output for maximum circulation & oxygenation, Integrated spray bar provides even, gentle flow for planted aquariums,