a) Photo of a smallmouth bass nest with a male guarding and a white PVC nest tag used to avoid double-counting nests. The larger gravel and cobble substrate in the nest can be clearly distinguished from the surrounding fine substrate. b) A snorkeler wearing a 7-mm neoprene wetsuit and gloves, holding the pressure washer wand used for substrate cleaning. c) A red rope was used to mark the transect and the diver worked along the rope facing away from shore so the sediment plume would travel away from the spawning habitat into deeper water. d) Picture taken following substrate cleaning. The white dashed line was added to show the edge of the treated area on the left side of the image, while the area to the right is untreated. Improvement in substrate quality can be seen through the reduction in biofilm, vegetation, and organic sediment which make the untreated side darker, and increased visibility of larger substrates in the treated section.