Fluval 206, 207 Bio Foam Value Pack 30 micron Potassium test kits let you

Potassium test kits let you know when it's time to replenish potassium levels before color loss occurs in your beautiful coral

From an aesthetic view

Item Number: RH-7 Size: Mini Dimension: 4″ x 5″ (10 x 13 cm) Wattage: 4 w Gal Size: 1-5 Item Number: RH-4 Size: Small Dimension: 6″ x 8″ (15 x 20 cm) Wattage: 8 w Gal Size: 10-20 Item Number: RH-5 Size: Medium Dimension: 8″ x 12″ (20 x 30 cm) Wattage: 16 w Gal Size: 30-40 Item Number: RH-6 Size: Large Dimension: 8″ x 18″ (20 x 45 cm) Wattage: 24 w

Replaces the original motor gasket in your Cascade 500 canister filter

Recommend to be used on aquariums up to 10 gallons

Fluval 206, 207 Bio Foam Value Pack 30 micron Potassium test kits let youFluvals all new media value packs are specifically designed for use with 06 and 07 series performance canister filters. Featuring all the quality, effectiveness and convenience youve come to expect from the leader in aquatic filtration, this value pack delivers all the necessary media required to keep your canister operating at peak performance for several months. Premium Biological and Mechanical filtration media Designed specifically for the Fluval