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Newb question
I'm planning a 20H low-light, low-tech tank, and was wondering if it's absolutely necessary to use potting soil as the tank substrate? Or could i just get by with flourite and sand and dose the Flourish line of ferts?
Thanks
I'm planning a 20H low-light, low-tech tank, and was wondering if it's absolutely necessary to use potting soil as the tank substrate? Or could i just get by with flourite and sand and dose the Flourish line of ferts?
Thanks