The April FOTM Contest Poll is open!
🏆 Click to vote! 🏆
In all honesty, they're pointless. If you think about it, it only shows that the water is polluted, not how much. To work out how much, they'll have to do separate tests, which will tell them if it is/isnt anyway.
At best, its a colourful way to waste money and alienate a fish from its kind when released....
Good point. its not like they can activly allow the danio to live in the river and then start panicking when the start lowing as the danio cant survive in our rivers. so they have to take a water sample, drop the danio in it, see if it glows, thentest the water. y not just test the sample..... im assuming by zebra fish that they mean zebra danio