Everything you ever wanted to say about "Zebra luvin", but didn't because you thought everyone would take the mickey! Plus general topics for discussion including everything from what you feed them to your personal experiences.
Today I bought 3 new fishes. They are about 7 cm. I think/hope they are female. But ... all three have al blue spot on their ventral side.
They look healthy. The fish store will contact the breeder to give an explanation. Monday I will know more. But in the mean time maybe you can give an explanation??
Without going into to much detail on this subject. Often the colour of faeces is most animals is nothing like the colour of the food that went in. Hence, as Barbie says, the dark (blue-ish) colour is just faeces. A good sign that you have three healthy zebras.