biOrb Cleaning Pads, available from Swell UK, at a discounted price.
Available in packs of three these special cleaning cloths have a smooth side for regular cleaning and a rough side for really tough algae marks.
The rough side can also be used to remove lime scale build up from the base of the light unit.
Reef One do not recommend using other algae pads on the biOrb as these may scratch the acrylic.The cleaning pad is made from a special double-sided material that will not scratch acrylic. The pads smooth surface will easily remove algae deposits.
The rougher surface of the pads should only be used to remove stubborn marks.
To clean the inside of the aquarium apply light pressure to the pad and work downward from the top of the aquarium.
This should prevent grit from the ceramic media being picked up by the pad, which could cause scratching.