well ive been keeping a few fish for awhile and have never used salt in the setups. from what ive read, salt adds alot of benefits. i just setup a 230 freshwater with paroon, rtc, rtc x tsn hybrid, clown knife and ill add one more fish alittle later. ive read that the salt will help with any small wounds from run ins between tankmates or that the paroon gets from time to time running into things in the tank. so now in the new tank, nothing but a 1"pvc return line. also ive seen people recommend the salt in the blue bags at home depot since its so much cheaper. also does it help keep alot of different diseases from starting and or developing in the tank?