Long time between water changes.

[Johnny Reefer]

Originally Posted by SeaHorse_Fanatic

Should be no problem at all (every 2 weeks is much more frequent than I do ). Just make sure it's topped up when the summer heat hits so you don't get a salinity spike. If you're really worried, do a 10g water change just before you leave & another when you get back to boost your trace minerals.

JMO & JME,

Anthony

I agree. My work takes me away from home frequently, although I've been on holidays lately and it's been awhile since I was gone.
Anyway, I got into reefkeeping with the assumption that being gone for 4 weeks would be okay. Although, I've been gone only once since I set up the tank, everything went fine and the salinity did not rise nearly as much as I thought it would.
Do the water change before you go and after you get back and maybe your wife could just top up with freshwater, at the very least, while you are gone.
Good luck.