DH and I are researching getting a tank and some fish, mostly for DS2 who has been asking for ages. The biggest problem we have is that we usually go away for two months over the summer. We are based in a house, not moving around, so it might be possible to take the fish with us? Is that at all possible? If we had a second 'holiday tank' set up? And if we don't, are there any species / set-ups that cope better with an extended period of minimal care - like someone coming in every couple of weeks? All advice welcome, we need to know if there are options before we go any further. TIA.