Innovative Marine ones are definitely cool. I am a big fan of the Mr Aqua 12 gallon long tanks and I feel it's just a great wide dimension that can house a lot more shrimp than regular 10-12 gallon tanks. It's not an all in one solution though, but at the same time with some work you can make them pretty seamless. For CRS you probably don't need a heater, so just a hidden canister filter or 1-2 hang on back filters and you're good. Yea it won't be as clean looking with the filter/light wires, but some nice hard/aquascape can hide that.