What do you suggest for extra water movement in a 10 gallon and 40? My 40 gallon actually has a pretty decent layout and movement. The 10 gallon has dead corners in both back corners and little flow reaches there and I notice fish poop settles. What are some ways to help with flow? I don't want insane flow because I'm adding shrimp to both tanks next week and the 10 gallon had corydoras habrosus in it. However, I'd like more flow in the 10 gallon at least to avoid algae growth. Thanks everyone!