Driftwood is great because you can get big pieces that aren't going to weigh a ton and it's relatively cheap. For our 55g, we use driftwood, but our 14 gallon has some great rocks (I wish I knew the type...). If I could find some big ole stones that were appropriately sized for the 55 gallon, then I'd rescape everything in a heartbeat .
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55g long | 6.6g bookshelf | 14g Biocube | 4g Betta tank
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