Mystery substance in fish tank?

Question

I have a tank with 5 platies (mixed varieties) and 6 Zabra Danios. Today when I looked in the tank, on some of the broader flatter leaves of the plants in my tank, there is a reddish brownish substance. This was not there last night! A couple of the leaves look positively furry. Any ideas what this is?

Answer 1

It might be zebra danio eggs. Because platys give birth. if not, probably just some fish waste.

Answer 2

It could be fish eggs. Make sure the other fish dont eat them just incase they are. I would need to see it to know what it is. :) x  

Answer 3

fish dookie