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Old 08-10-2011, 07:00 PM
KevinK KevinK is offline
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Mr Wilson,

what substrate is there in the main tank, and how thick,

it seems very course and as far as my understanding goes' thy always say course material will trap a lot of debris.-- what's the background on this ?

I also se there is a DSB in the refugium what's the grade there

thanks
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