Sigh. Now that my tank has been moved and I have moved out of my home for the renovation to start, I am unable to check up on my fish regularly. I am only able to check up once a week to feed them. My next water change would be in a long one months time due to waterworks being changed for renovation ( I can’t do anything about it). I also cannot check for uneaten foods. I will be expecting casualties from this, but i will still be unable to do anything.
I don't know what fish you have, or stocking levels, but if there is absolutely no way of any water changes, or maintenance, then I'd be sorely tempted to not feed at all!!
The most important thing is to keep the power on during your renovations so that water temp and oxygen levels remain stable.
The fishes breathing process alone will produce enough ammonia to cause you a problem over that period of time, let alone feeding them too, which will only add to the rising nitrate levels.
At the end of it you might have a few slimmer looking fish, but at least they'll be alive! The vast majority of hobbyists underestimate just how long fish can go without food.
Oh, and when your water is turned back on I'd run it for a while through the new system/piping, whatever it is you're having changed, to flush out anything that could cause you a problem during a water change.
I wish you, and your fish, the best of luck.


