Welcome to Tim's Tropicals Expert Freshwater Quiz.
First name (Optional):
Last name (Optional):
Which of these species are often dyed by injection?
This species from Madagascar is extinct in the wild.
Malawi Blue Dolphin
Which of these filters has lost popularity over the years, due to concerns about possible toxic build up?
Wet / Dry
Which fin is present on a characin but not on most other species?