10-10-2011, 08:39 AM
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I don't do it often any more, but when they need it, I use the dishwasher - being careful to remove all gravel, the plastics go on the top rack, rocks on the bottom. I add about two cups of white vinegar and run a regular or short wash. Works great!
To answer the question, clean only if/when you need to to maintain appearance - I agree that some 'aging' makes them look more natural, but if you have a nitrate/algae problem, they can get a little 'cruddy looking' in which case, a cleaning would be a good thing.
Note: With bio-media in my bio-filter, I don't worry about any bio-loss on decor - filter and substrate will have more than enough biology.
Last edited by AbbeysDad; 10-10-2011 at 08:45 AM..