back to green water

Why is this a problem?

Well fed fish are the most common cause of algae problems. Most fish eat far more than they need too and the waste they produce as a result provides food for algae. Uneaten food left in the aquarium will quickly create an algae picnic.

How can I prevent this?

Reduce the amount your fish are fed.

Consider using vegetables to feed your fish on most days rather than flakes or pellets. Peeled peas, a large chunk of cucumber or blanched lettuce can be left in the aquarium for your fish. They must be removed after 24-48 hours before they go bad.

Vegetables will not cause so much of a problem as pellets or flakes, once they have passed through the fish.

For more information see:
caring for your fish

How do I get clear water again?

Use a Reef One cleaning pad to wipe algae away from the sides of the aquarium. The algae will then be trapped in the filter cartridge.

Keep an eye on the filter cartridge - as the sponge gets dirty remove it and wash it under the tap. By keeping it clear it will continue to trap the algae.

Carry out a series of partial water changes. Continue until the water is clear.

Do not replace all of the water in the aquarium as this will cause worse problems.

For more information see:
cleaning your aquarium