Fishing is fair to good at the collection ditch for 13 to 18-inch trout with the occasional large trout being taken. Fishing seems to improve on rainy or windy days.  Small brightly colored spinners were doing well.  Wet flies have been performing better than the dries right now.  These include the usual small nymphs such as PT’s, hares ears, olive soft hackles, BWO emergers, red or blue copper Johns and prince nymphs as well as egg patterns in orange or pink.  Wooly and crystal buggers in black, purple or olive are also working.  In the crystal clear water of the collection ditch, if you can see the fish, they can see you.  Go low, slow and wear drab clothing. Unit 21 is also producing some bass using olive soft plastic grubs or olive wooly buggers.  The water temperature here is in the mid to high-50’s. While boats aren’t allowed on the South Marsh until June 15, float tubes are.  Fishing should be good for bass from a float tube as you head down the main channel.