This morning my coral beauty wasn't doing well. I checked my salt level with my hydrometer. It was at 1.028 (it usuall hangs around 1.026). I haven't added salt water for about 5 months; I can't seem to get it down within a normal range. Anyway I added about a gallon and half of fresh ro/di water. The fish immediately improved and the water dropped to .026. I need to change the filter and plan on using more fresh water. Should I wait until tomorrow so the fish and other critters have time to adjust to the lower level or would it be better to do it today to get the level lower.