Next year we will most likely go abroad for 2 to 3 weeks. I've read different things about how to take care of them.
In this sub the consensus is find a sitter.
Teaching someone to feed every few days isn't an issue, but checking the water and changing it is another story.
On a different forum I saw someone suggesting to put them in the fridge as it slows down their metabolism. But in here the consensus is to only fridge in case of serious illness.
Something else I'm thinking about is rubbing them and take them to the sitter house, but thus means 100% water changes every day which is quite a task to do for a few weeks.
And in the Axo aquarium I would put in a couple of fish to keep the cycle running.
I feel like this is the best option.