I adjusted the teeth on mine using a dremel. Dremel's are awesome and easy to use.
Dremel image from Adventures in Home Improvement « Life’s a trip  _________ Current specs: 55g|98lbLR|CC|SundialT5HOUVL|2-Koralia 2|2-K 1|1-K Nano|GroundProbe|octopusBH-100F|ATO|AutoDosing|RO/DI
Friends: 2ocClowns| 4linewrasse|flametail Critters: 16blueleghermits|ton-o-snails|
Anemones: 3 flower from GoM Coral: 28 different species at this point
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