Mesh Cage

[RyanV]

I'm using the mesh breeding cage for my 1 molly fry. It's been in my aquarium now for about 1 week and I'm starting to notice that the mesh on one of the corners is starting to turn brown, almost like a rust color. Why is this and is it safe? I siphon the cage out every other day and my water is fine. Any idea's? Little hard to see in the picture

 

[KittyKat]

That is most likely diatoms: http/natureaquarium.co.uk/?p=398

 

[mike455555]

That is most likely diatoms: http/natureaquarium.co.uk/?p=398

+1 to that its an alage nothing to worry about most fish have a little nibble on it

 

[PrairieSunflower]

Yep, happens to mine every time.

 

[RyanV]

Thanks