Cheap thrills for reef nerds

[Rikko]

Found a new toy and it's the cheapest thing you'll ever find in the hobby. It'll cost you a dollar and you just need to be in the dark.
(Get your mind out of the gutter)

Many dollar stores sell "counterfeit bill detectors". They're basically a small LED flashlight with a UV LED in them instead of a white light. The idea is that you shine it on a dollar bill and see the watermarks and stuff. Boring!

Shut off all your tank lights and make sure the room is dark. Now wave the thing around your tank and watch what your corals look like! I have 2 different torch Euphyllia in my tank that I thought wre fragged from the same parent. Not the case! The tiny frag absolutely glows. The larger one doesn't do much of anything. Brown button polyps shine in the center and look rather pretty (albeit you have to catch them before the shrink up for the night). My hammer Euphyllia shines a little bit but isn't that exciting. Small porites? Nothing. Candy cane Caulastrea? It absolutely explodes with phosphorescence. It honestly lights up the whole area around it. My fox Nemenzophyllia does the same.

I've seen them at every Dollar Giant I've been to, and at one non-chain dollar store as well. Makes for a fun detour before bed.