I just got a 10 gallon fish tank. I am wanting to start a tropical community. I ...
A 10-gallon aquarium is an easy size to start with for keeping tropical fish, but be sure you don't overcrowd the aquarium. The general rule is one inch of adult fish size per gallon of water. So for example, you could have ten 1-inch long fish in your aquarium, or five 2-inch long fish. You need to be sure you don't get fish that will grow too big for your aquarium size.
For example, if you wanted to get a Plecostomus for your aquarium to eat algae, they will grow to be 12 or more inches long - and that is way too big for a 10-gallon aquarium. You could get an Otocinclus algae eater, though, as they only grow to 2-inches in length. They do a good job controlling algae, as long as you keep the water quality good.
With proper water quality, you should not need any algae control chemicals.
You should do a 10% water change every week, or 25% per month. Use a gravel vacuum to remove waste from the aquarium gravel and then replace the water with dechlorinated tap water. Doing this regularly will prevent wastes accumulating that otherwise will contribute to algae growth.
See the free Care Guides at your local PetSmart store on setting up an aquarium and on aquarium care for more information on water quality in an aquarium.
That will keep you from getting algae growing.