is there any alge eaters that are easy to find, hardy and HAVE scales?

#1
ever since my out break with ICH i lost alot of fish before i desided to treat my tank... the only fish that died during treatment was my alge eater... i knew there was a chance because i was not sopose to treat him because he was scaless, but i had no back-up tank to put him in... i dont want to buy another scaless fish incase i have to deal with ICH again...i also don't want any snails because the treatment will kill them too!