Eventually 2-3 will need that 75g or larger. A 29g would be a good size for the first 6 months or so....it is just an option of if you can afford to upgrade later. I bought my 29g knowing that they needed to be moved from the ten, but at the time, I could not afford to get a big tank. I love these guys and do not plan on giving them up. So, a 29g would be fine for the first 6 months or so. My pair are in a 29g and they are doing fine but I know they will be moved to a 125g with some caribes soon...75g for a pair should suffice, and maybe even for three, but that is what I consider the min size for a pair or maybe three. Also, cleaning their tank has never been a problem for me. At first I was neverous cleaning their tanks and thought about using a divider, but then I saw how neverous and shy they are, and this will not change anytime fast. It has taken them 6 months to warm up to me. They now come out of their cave to eat beefheart with lights on and I'm right in front of the tank. I constantly just move plants that were knocked around with my hand....Even right next to them...But that took a while for me to realize, and I still keep an eye on them to be sure, cuz you never know.
