thanks for this. As you have vegie eaters and omnivors, I would say feeding every 3 days should be fine. I would rather underfeed than feed to much and spoil the water. I would suggest that your friend who feeds every 3 days, just feed enough and does not compensate for feeding more as it is 3 days between feeds. I would only feed pellets and not fresh vegies, as if your friend is not there they will rot and spoil the water. It would be interesting what other think, but 3days feeding should be fine for 16days. That is my view and if they were my fish I would also do this. The only thing maybe would also to do 3days before a 40% water change and then again 1day before holiday do another 40% water change. cheers jk :thumbup: