Sukh 410g Activated Carbon Pellets

Sukh 410g Activated Carbon Pellets are loose, cylindrical carbon pieces made from coal. Each pellet is about 4 mm across, which makes them easy to pour into a mesh media bag or a canister basket. In an aquarium, their job is chemical filtration: pulling dissolved organics, odors and the yellow tint from tannins out of the water.

What activated carbon does

Carbon is full of tiny pores. As water passes through, many dissolved compounds stick to that surface. The result is clearer, better-smelling water. Carbon does not remove ammonia or nitrate in useful amounts, so it supports your biological filter rather than replacing it.

How to use the pellets

• Rinse a portion in old tank water or dechlorinated water to clear dust.
• Fill a fine mesh bag, such as the Fluval media bags, and tie it off.
• Place the bag after your mechanical sponge or floss so it isn’t clogged by debris.

When to swap it

Carbon fills up over time and gives no visible sign that it is spent. Most keepers swap it every few weeks. If the tint or smell returns, that’s a clear cue. Remove carbon entirely while you dose medication, since it can pull many treatments out of the water.

Other uses

Sukh also markets the pellets for deodorizing fridges, shoe cabinets and pet areas. If you buy one bag for the tank, keep that portion separate and sealed so it doesn’t absorb room odors before use.

A 410g bag goes a long way in a single tank. Split it into several small bags, use one, and keep the rest sealed in an airtight container. That way each fresh portion is still fully active when you swap it in.

Alternatives

For a pre-portioned option, Marineland Black Diamond is a well-known aquarium carbon. If you need organics removal you can regenerate, look at Seachem Purigen.