Hey guys so I have my 20g long that's been setup for almost 8months now and I'm wondering if I should start dosing my tank? As of now I do 3gallon water changes every Saturday. Things are looking great and all my parameters are stable "or so it seems". I use my own RODI water and mix red sea coral pro to 35ppt for 1hr and change the water in my tank. Will dosing stop the need for such frequent water changes? I'm scared that I will overdose something and cause a problem. Please let me know what you guys think. Also if you suggest I dose, should I get a.dosing pump?