As long as you have a mature tank that has finished cycling (which means your ammonia and nitrite levels must be at 0), your tank should be fine if left  unattended for 2 weeks. Just do a 50-60% water change and vacumm the gravel just right before you leave.

If you want to use a fish feeder , get a good quality one instead of the cheapest, since a bad feeder can dump too much food into the water and polute it.  I've had success using a brand called the eheim everyday fish feeder.  If you do get this brand , lay the fish feeder on a paper tower on a table and adjust the amount of food you want to dispense for the fish. Press the manual button a few times so the drum will turn, which will allow  you  to see how much food is dropped each time. Do this until you are satisfied the amount is just right for your fish. I recommend you only feed 1 time per day at most when you are away from home. Also make sure you secure any fish feeder so that it doesn't accidently fall into the tank.


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you might care to add a product such as easy balance to your tank, which will lock out the nitrates and prevent"spikes"

Thanks for the advice everyone. I don't trust my partners parents to feed or clean them, it would be too much work for them. We're not going away until later this year so plenty time to get sorted

Another quick question. We don't have and airstone or air diffuser in our tank. We have a Juwel Rekord 800 Aquarium, should i get a Juwel air diffuser that fits in the tank or are there any better ones?

The nozzle of the filter is facing upward toward the surface of the water. The water above the nozzle is moving a lot and the rest of it is rippling. If that makes sense.

It makes sense!

scrivens: They will have something to eat, always. Usually algae and stuff like that, there's just so much small stuff in an aquarium..

Before I got the bristlenoses for my tank, I was growing a pretty thick layer of algae on the back of the tank The baby moor in particular loved it...

I don't see anything wrong with leaving the fish for two weeks without feeding, as long as the aquarium is in good working order. As others had mentioned, I would change 50% of the water right before though. But since goldfish are cold blooded, they should be just fine without food for a couple of weeks.

Sure!
hope you'll have a nice trip and that the fish will do fine while you're out...