I am replacing my leaky 125 with a 130 next weekend.So I;m thinking this would be the perfect opertunity to change my CC substrate with a deep sand bed. WHAT DO YOU ALL THINK. Remember that this is a FOWLR and will never be a reef. Will the benafits apply in this tank??? If so,do they justify the expence???I am getting this 130 for free,so if it truly will be better I will change it. Let's hear from everyone-Pro's and con"s. THANKS.