The rain-cooled waters of Tampa Bay are providing much better fishing. Baits of all kinds are thriving in the upper portion of the bay. Schools of scaled sardines are holding over shallow grass flats in open water. Chumming up the sardines with tropical fish food has been reliable, especially around sunup. Snook, redfish, jack crevalle, mangrove snapper and Spanish mackerel are all targetable species. Working onto the grass flats with the morning incoming tide this week is the pattern for those seeking redfish and snook. Target flats that have plenty of life. Lots of dipping terns and/or schools of mullet are things to look for when seeking an active flat. As the water quickly rises, fish push under the trees. Working points in the shoreline and the many small creek mouths in the area keep you in the action until the tide becomes too high and the fish are unreachable. Artificial reefs north of the St. Petersburg pier area are holding good mangrove snapper and Spanish mackerel. Anchoring uptide of the structure and chumming with live baits and a frozen chum block will get the fish active.Tyson Wallerstein runs Inshore Fishing Charters in the Clearwater/St. Petersburg area and can be reached at (727) 692-5868 and via email at flatsmonster.com.