For me, it was cost.
I'm a low budget reefer trying to afford this hobby on a teacher's salary. I have a 240 gal tank and trying to do water changes weekly and dosing to maintain the water quality is more expensive than running a calcium reactor, skimmer, refugium, carbon/GFO, and testing all in addition to keeping an eye on the occupants to make sure they are happy and safe.
With salt being around $100 per 200gal mix depending on the brand you prefer it is much cheaper to go without at my size tank since I'd be doing a 25gal w/c weekly to do 10%. That's $600/year in salt alone.
I'm a low budget reefer trying to afford this hobby on a teacher's salary. I have a 240 gal tank and trying to do water changes weekly and dosing to maintain the water quality is more expensive than running a calcium reactor, skimmer, refugium, carbon/GFO, and testing all in addition to keeping an eye on the occupants to make sure they are happy and safe.
With salt being around $100 per 200gal mix depending on the brand you prefer it is much cheaper to go without at my size tank since I'd be doing a 25gal w/c weekly to do 10%. That's $600/year in salt alone.