I refilled my cartridges which are cli-221's with my bulk ink designed for cli-8. The colors on photos are really jacked up. Do I need to buy bulk ink specific for cli-221 to correct this problem ? I hate to have to toss all this cli-8 ink I have.
It's different yes, all inks will behave differently, same with papers. You can profile your printer or I'm sure if you just mess with the color settings a little you can get close.