rudedog40
Member
Do yourself a favor and call ahead to whichever LFS you plan on going to to see if they have a refractometer. Out of the three LFS in my area, anytime I see them checking water parameters, they are using the plastic hyrometer. I've never seen a refractometer in either store for sale. Don't assume a LFS has a refractometer in their possession. Many of them just ballpark their SG levels, and rarely put their tanks in hypo. If they have a fish with ich, they either use the meds, or douse the tanks with copper.