That looks like a DIY project. Some bent conduit attached to the back of the stand and simple shop lights hanging over the tank. Depending on the size of the tank, could be very cost effective and easy to do.
Typically those are called pendants in the aquarium world. I don't know that they call them at Lowes or HD, maybe hanging?
They are known as pendant lighting everywhere, including Lowes and Home Depot. Pendants in the lighting section start somewhere about $30 each and go up from there. The hoops are a DIY thing, as pendant in the lighting section are installed as drops from electrical boxes mounted behind the sheetrock on a ceiling.
As Nubster suggests, a cheap DIY is to get clamp-on lamps (Walmart, Lowes, HD, etc.) remove the clamp and hang from bent electrical conduit.
Krylons are good but rust o leums(I think it's spelled) are wayyyy better! They have better coverage, last longer and help prevent rust! Besides Montana's, rusto where my cheap alternate can of choice!