Setup for 3 red eared Slider Turtles?

Red Ear Slider Setup

Your other question let me cover tank size. The filter should be rated for a tank 2-3 times the size of the tank you are using it in. Canister filters are usually recommended. 80°F water, 90° basking site. Use an aquarium heater and an incandescent bulb for heat. You also will need a UVB bulb for basking unless you are giving them food high in vitamin D, like liver. Earthwoms and fishes are good foods too. The adults can also have dark green, leafy vegetables and bright yellow an orange ones. De Vosjoli has a pretty good book on their care. Check large pet stores.

If your going to have three in one tank I'd suggest 100 gallons or more.. They get rather large when fully grown. I'd suggest a fluval fx5 or ehiem filter. Make sure the filter filtrates more water than what you have in the tank. There is no such thing as over filtering!! I'd suggest getting a fully submersible heater and a average temperature of around 74 or 75. Your going to need UVB UVA lights for basking for them. Feed them red shrimp or even brand name turtle foods from the petstore.. Once a day is good enough. Give them how much they can eat in about 2 minutes. You can even move them to a different container so they don't make a mess in the huge tank. You should do about 50%water change every week to keep the water clean. For basking you may have to make your own when they are too big for ones to buy on the store..there are many different ways you could make one so just google then for ideas! Hope this helps