I've had blue and black on tanks and I prefer black.
Color Aquarium Background? - Aquarium Advice - Aquarium Forum
full color page scan of vintage fish illustrations on
ELEBOX Aquarium Background Blue Black Fish Tank
Painting Aquarium Background posted by Ethan Sellers
10 Best Blue Websites in 2022 [+ Their Color Schemes]
Painting Aquarium Background posted by Ethan Sellers
【High Quality 】Double-sided fish tank background is made from thickened PVC, it is waterproof, easy to clean, non-glare, not easy to fade and durable.
ELEBOX Aquarium Background Blue Black Fish Tank Background Picture 2 Sides Fish Backdrop for Aquarium Wallpaper 20 x 48
10 Best Blue Websites in 2022 [+ Their Color Schemes]
Black Fish Tank Background posted by Michelle Cunningham
Tank Background Color - Black or Blue
Self-clinging, reusable vinyl aquarium background for unique, stylish and stand-out tanks. A deep, blue rocky bed of coral with open water in the
Dark Blue Reef and Water Surface Background — Aquarium Vinyl
SPORN Static Cling Classic Black Aquarium Background, Small
Black Fish Tank Background posted by Michelle Cunningham
Aquarium Substrate Color: Get it Wrong and You'll Be SORRY!