the rock, the 1st one
though i'd stack it in a bit more of a natural way but between the two the first is better for sure
I was trying to maximize the space between the rocks for water flow and territory spaces. Right now I'm trying a lot of different things before I buy more rock to replace what I've removed. I was thinking of getting some large driftwood branches and turning them upside down to look like tree roots. Do you think that could work with rocks?
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