yes they can be kept alone but they prefer company...just like humans lol, but this is cool..ok at night they can sound like a foghorn or a tuba...but i see they are in stock so i guess i am gonna have to get one quick..by asking my grandma hopefully they save one!! p.s. they are kind of reclusive..Pazzoman;5160044; said:Maybe I'll be thinking about the jags then...can they be kept alone? Also I will check on the para pleco...never heard of that.