How big can a chaeto ball get?

[karazy]

not sure what the max size is, but ive seen cheato the size of a fat full grown cat.

[parkinsn]

well not sure of max size but this is a big one

http://www.canreef.com/vbulletin/showthread.php?t=53124

[FitoPharmer]

i used to throw out more then 1/2 a garbage bag of cheato every few months from my 125g sump in its hayday.