A tank like this is any cube or cube like tank that has a canopy that closes tightly. You need 2lbs per gallon of water of aragonite sand as well as 1 to 2 lbs. per gallon of live rock. A small yet efficient protein skimmer and a small wavemaker device and you're done.
Do you know something about SW set ups? It's a whole different game than FW. You may consider reading around, learn to make readings of new parameters until you feel comfortable; the nitrogen cycle takes more time than FW. Strong Lighting is only important if you intend to keep fragments of corals that require bright light to thrive.
Small SW take a lot of maintenance work. DIY water top-off can be of help. Some of today's salt mixed come with practically everything needed in the water; however, depending on the particularities of your tank, you may need to dose calcium, magnesium, et al. pH and salinity should stay within certain range and Nitrates should stay close to zero.
There are threads on DIY modifications for most cube tanks.
Pepetj
Santo Domingo