Once you've finished setting up a betta tank and you've gone through the fun of selecting your fish, you're ready to take care of them. And that doesn't require as much work as you may think. You need to feed them a high-quality diet composed of a variety of proteins. This will keep them healthy and make sure their colors stay vibrant. You'll also want to perform routine checks on the aquarium's water quality. It's better to stay on top of your readings than wait for possible signs of illness to check if you have ammonia or nitrates building up. However, if you're performing weekly water changes of 25%, you shouldn't encounter too many problems. And you'll want to perform routine tank maintenance. This includes everything from changing the filter cartridges as needed (marking this on a calendar will help), replacing light bulbs, and scraping down the sides of the tank to keep them free of mold and algae.