Sami wrote:

The algae eater has disappeared completely from the tank, there is
absolutely no sign of him.

Is it possible that one of the other fish could have "eaten" him ?

I suggest looking on the floor in about a 6 foot radius from the tank.
Otherwise they are GREAT at hiding, in logs, decorations, under rocks,
etc...

-D
--
"A positive attitude may not solve all your problems, but it will annoy
enough people to make it worth the effort." -Herm Albright