Nice tanks! I like the one in the bedroom the best. Where did you get the grotto style decoration?
In the 1/2 gallon? In the 1 gallon it was a 47 cent plastic PVC T. In the 2 gallon it's the smaller version that was 23 cents. Perfect for small and large tanks with java fern tied onto it with fishing line.
We bought some black Krylon Fusion Spray paint for the ones that weren't in use yet. I glued them together with silicone and then spray painted them a beautiful black. PVP pipe, elbows and the T's, many decorations for the various fish.