Well I didn't quit and still have one tank (230g) with a deep sand bed.......but if I had to do it all over again I wouldn't have one. All my other tanks are BB and I will probably eventually remove the sand from the 230g.
Sand and foam are evil. Every tank I have ever had a foam in has had high nitrates - remove the foam and the nitrates fell. Even though I was rinsing the heck out of the foam every week or even 2 times a week I still stuggled with nitrates. Not that they have totally disappeared but at least they are managable with water changes twice a month.
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