fish with blue light

Anyone else’s Bicolour Blenny have markings that show up under bluer lights? I was really worried the first night I noticed this but he seems happy and healthy enough!

Hi Everyone, I have a 20 gallon IM Nuvo with Coral. A big factor when picking out fish is how they look in blue lights. Which have color pop? My tank will be blue during the time I see it most. Note: I can rehome if it’s a species that can handle being in a 20 gal when small. I picked out...