Close up of the rockwork in my 25-gallon cube

Just a close up of the rockwork in my 25-gallon cube. There is a large cave in the bottom left that goes all through the underside and back of the tank and a smaller cave just above it that it connects too as well.

Water flow wasn't what I originally envisioned so I added a small powerhead to the upper left-hand corner (just under the filter return) that drastically improved everything. It's got really good circulation now.

I got lucky with the live rock, tons of little sponges and coralline algae already on it.