hello guys and gals after 30 years away from fish i have jumped back in. i have 125gal. tank with a 60 gal sump. the sump is new to me and that is where my problem lies. after getting every thing set up and running sort of my problem is i can't seem to get the whole thing balenced out. the le4vel in my tank seems to drop about 2 inches every time i think i have it set up. i switched pumps 1st i had a mag 9.5 then i switched to a mag 5 and still the level dropped 2 inches has any one had this happen to them or any one have any suggestions i would be sure glad for any input...dave