More tips
Use a mortar and pestle to mix and grind pellets, insects, etc. Perfect for making fry food from larger pellets and for fish with small mouths.
Dust insects with reptile vitamin powder to supplement.
Meat thermometers are accurate and relatively cheap. Also magnetic...you can stick them on metal stands for convenience.
Hot salt water is also good for cleaning old dry algae from artificial plants. Use scalding hot water (gloves!)
Use eye droppers to feed liquid medications. Drop water on the fish's mouth to get them to open wide.
Prevent pellet spills during feeding by using plastic spoons and waving pellets in the water. My blood parrots come up to eat pellets right from the spoon. For large populations use an old plastic soup spoon.
(will add more as I remember)