Hi everyone. I am new to salt water aquariums, having had several fresh waters for many years. I purchased the Waterbox 15 gallon peninsula AIO tank and am doing my research on water now. I live in an apartment and do not have the ability to drill countertops, water pipes, etc. or alter plumbing in any major way that cannot be easily reversed. Does anyone have any recommendations of a portable or countertop RO/DI unit that would fit the bill? I don't have access to a hose or outdoor spigot, but do have a kitchen and two bathroom sinks, as well as a bathtub. So far, this seems to be the biggest issue I'm running into with venturing into the salt water space. Any help is greatly appreciated!