A friend of mine has an electric blue johanni that is attacking thier jack dempsy. They offered to give the johanni to me for free just to get him out of their tank. Here's my question. I have a 29g tank that I have to cycle and setup. I figure that should be big enough for him to be happy. But, in the meantime, all i have cycled and ready is a 10g. Will he be ok in the 10g for a week or 2 while the other is being setup and cycled? He is approx 4in long.