Fluval U3 Media Value Pack hides place the balls directly into

place the balls directly into a filter section or sump

30w - for ponds up to 30

Ideal for birds such as cockatiels

french bulldogs & cats

Ideal for dogs who love to play

Fluval U3 Media Value Pack hides place the balls directly intoFrom the Fluval range. Replacement media sets for Fluval U3 Filter. Each media value pack contains: 1x biomax 55g, 2 x bio foam, 6 x poly carb. For up to 6 months of clear, healthy water. Providing the biological & mechanical filtration to keep your aquarium healthy & clean. Biomax: Maintains a healthy nitrogen cycle to reduce & control toxic ammonia & nitrite, complex pore system maximizes water contact time & surface area to support & promote