Arthur
Member
I have a quick question for you guys, maybe you can help me decide. I have a 10 gal. Fusion Nano in my son's bedroom it is 10 months old. He want's little more space in tank so I found a buyer for it and bought 20 gal. I have to transfer all tomorrow. Should I use old sand ? If better option is no then I'll go bare bottom. Since it is double volume of water it kind of bothers me too. Don't want to end up with small cycle... which could happen with over 50% new water. Anyway, transfer sand or toss it out. Thank's in advance. You guys always so helpful.