algae growing on zoos

[evanjah]

anyone ever have a prob where there zoos close up and algae starts growing on it and eventually it rots away. I cant scrape or blow it off either

 

[abeandlulu]

Sound like you might have a phosphate problem.

 

[evanjah]

phosphates come in at 0

 

[ajroc31]

Try tweezers.

 

[abeandlulu]

What do you have in the tank? Is something picking at the zoas to make them close up?