Want to get that fry food directly to the bottom of the tank without it going over all over the place? Want to be more precise filling those test tubes from the API test kits? Need to get a small blast of water in that crevice of your filter that you can't reach with a brush when doing your routine maintenance?
If you answered yes to any of those questions, pictured below is something that will accomplish the task.
Liquid dispensing syringes like this are easy to find and serve multiple purposes. You can pick them up at your local pharmacy, medical supply store, or purchase online. I have more than a dozen of them and use them all of the time. I'm sure you can find ways to use them too.
The Cichlid Room Companion
Tropical Fish Hobbyist
American Cichlid Assoc.
African Cichlid Hub