Bud, not trying to be offensive, but
NO lights, NO filtration = RIDICULOUS
Photosintetic animals need LIGHT, and unpolluted water to survive. Would you keep a dog in a box with no food, and no fresh air?
Yo need to rig some sort of light, and at least very frequent water changes for your...
UV sterilizers, to be effective, work on slower flow than ideal for a reeftank . Check how much flow do you need on yours particularly.
The SCWD is supposed to reduce the flow by 20%, but also requires a minimum flow to work. So if you have low enough flow for the UV sterilizer to be...
