Brown algae...little hairy..eating zoos

[cavyroo]

Have some zoos that are not opening up cause I do believe brown..hairy algae is consuming them. I am going to take a fine tooth brush to them tomorrow..
Any other ideas why zoos wont open? ( water is all good to go)

Thanks

 

[NaH2O]

Have you checked them for other parasites? Such as heliacus snail or zoo eating nudibranchs?

 

[spongebob lover]

how long have they been closed for?
sometimes zoos will close because they are cleaning themselves and they usually open after a week.
Like Nikki said, try looking for snails or nudibranchs at night, they might be eating your zoos.
if i was you, and if they haven't open for a few weeks i'd do a dip and try looking for snails or egg snails or nudibranchs.