kcrygogo Coral Frag Holder Acrylic Coral Rack with Powerful Suction Cup Suitable for Household Fish Tanks (4pcs Fluorescent Four-Color Single-Hole Acrylic Stand)

It worked great. The suction cup is very strong and it looks great with the blue light make my coral pieces look bright.

They do the job, strong hold just clean the glass and turn the knob. I have 2 different types of plugs both fit fine. Small disappointment that only 2 of the 4 fluoresce brightly under blue light but over all I'm good with it.

Works great and the colors are really bright. I did have to use the dremel to make the hole bigger but you can change the plug also.

2 of these glow under my blue LED light. 2 of them do not glow. That's very disappointing. But since I already assembled it I guess it's more of a hassle to return 🙄

I have these for a bit now and they work good I like them for sure .

Really cool they glow with the reef lights.

Then don’t stick well

Difficult to peel paper off plastic when building