Turbos eating Zoos?

[Raptor72]

My back wall is covered with several zoo colonies for about 9 months now I replaced a couple of turbo recently I noticed today that a couple of colonies are missing some zoos Is it possible that my new turbo ate some of my zoos?

 

[topn0tchlefty]

highly doubt algae grazers would munch down on zoas

 

[A. Grandis]

Turbos wouldn't eat them, but depending on their size, they could remove them from the glass accidently, while grazing.
Try to look under the rocks in places where the water flow is weak.
They could be still in the tank.
Grandis.