So I think I made a mistake, I heard my mechanic say I needed new zincs so i went out and got new zinc anodes and put them on the boat (bought it from iboats too). Later I found out that a lot of people refer to all anodes as "zincs", including my mechanic. So right now I have zinc anodes on my boat, replaced the previously and well used anodes that were on the boat. Unlike the PO I trailer my boat so the anodes were more of an eye sore than anything else. I boat in only fresh water and keep the boat in the water for at most a day or two if that long. I know I should have gotten magnesium anodes, what should I do any suggestions? Should I toss the old ones, buy some magnesium? I got them at the end of season and tossed the box, so I am unable to return them. There is no salt water body of water near me.