Blacklight fish

[Ghost_knife]

I have neon tetras and to make them shine I have a small nightlight on the tank with a timer that switches the main hood off and turnes the other one on and you can see the bright blue flashes, It's really cool

 

[patoloco]

blacklight makes white clothing turn blue right? Maybe it could turn a white molly blue?

When you expose white clothing to black light and see it glow, you are mostly seeing residues of your laundry detergent. Most current brands of laundry soap are "enriched" with phosphorous, in order to achieve the withest white. So, when sun shines over your white t-shirt it will stand out from a "normal" white fabric. Nice trick.

!!!!!!!!!!!! Under no circumstance, ever, put soap in your tank to make your fish glow. Just in case... ... ... :