Expert Tropical Fish Quiz Welcome to the Expert Tropical Fish Quiz This tropical fish quiz for experts will provide 4 randomly generated questions. Try the quiz as many times as you want. The questions will be different each time. Click the NEXT button to begin. Which of these species is often dyed by injection? Glowlight Tetra Glass Catfish GlassfishWhich of these filters has lost popularity due to concerns about possible toxic build up? Canister Filter Bio Wheel Underground Filter Wet / Dry FilterWhich of these is not a true species? Red Devil Cichlid Midas Cichlid Blood Parrot CichlidThe Glofish is a White Cloud Danio Rasbora Killifish Leave a Reply Cancel reply Save my name, email, and website in this browser for the next time I comment.