Iwagumi style tank without plants?
So I have a random question. Has anyone ever done a "planted tank" without plants?
A little background: I started out with the standard 10 gallon freshwater tank and quickly got a used 50 gallon for my freshwater community. A few months later, I started a 10 gallon reef tank, subsequently upgrading to a 40g reef tank. Meanwhile, my freshwater tank got converted to a saltwater fish only tank. The other day, I was a the LFS and saw a gorgeous planted tank. Must have been 100+gallons and I just couldn't keep my eyes off of it. Just so peaceful and serene. All they had were a large school of cardinals and some otos.
So I just took down my saltwater fish only tank and have been considering going back to the freshwater side. We just got a dog so I have a lot less time for my fish maintenance and the reef tank already keeps me plenty busy. So I was going to go with an Iwagumi style tank, but the thought of all the water changes and trimming is giving me second thoughts.
but I realy like the look of the zen nature aquarium. So here's my question: anyone ever done a iwagumi type tank with rocks and earth, but without any plants? I was thinking of setting up a rock-only tank also with just a large school of tetras. My goal is really just to have a relatively low maintenance tank that I can just enjoy and not have to worry too much about.
I've already done the community tank and I've already done the nature aquarium. So just looking for something different