Why would you suggest more? I usually see 40% monthly suggested. Do you think that’s not enough?
Different sources have different ideas about what is best.
When I first started out, I was told to do 20% weekly water changes, and that I should be faithful to them.
The tank was a 20 gallon long, so weekly 20% water changes was enough to replenish elements being consumed by the tank. There was no need to dose.
The tank did great this way for about 2 years, but then the coral grew considerably and water changes alone were not enough to sustain elements.
Maybe you could just go with 10% to start and then increase the frequency if you see its necessary?