A Red Eared Slider Turtle grow to be about the size of a plate. Females - 25 cm Males - 15 cm
I wouldn't recommend it.
Two full grown red eared sliders will need at least a 25 gal. tank if not more.
Only baby RES can be housed in a tank that small. But, for many you can keep in there, I'd say two baby RES. But, do realize that you will need a bigger tank, because a full grown male will need a 75 gal, and a full grown female will need at least a 120 gal. If you can't afford this you can always get a stock tank or a plastic container bigger than 55 gallons.
The Koi would be prey for the turtle. More than likely it would begin with fin nips to slow the fish down and make it easier to take bites out of.
220 pounds full grown 220 pounds full grown 220 pounds full grown
No.
CHINA !!! WHAT ELSE!
A general age guess can be gained by simply looking at the size of the turtle. Yellow bellied and red ear sliders will reach approximately the size of a dinner plate when full grown.
The gorilla lol
Yes. The most common fish a Red Eared Slider will eat is Commet Goldfish. Red eared sliders will eat fish, but fish are full of worms and parasites which will contaminate your filter. For an indoor slider I suggest only pellets and veggies. Plus they eat parts of the fish and the rest you would have to clean out right away. My slider loves just his pellets, he snubs romaine lettuce and any other veggie I have tried. Ice berg lettuce is not good for sliders either. I have a 4 year old slider that is 5 inches long he is in a 40 gallon tank alone.
Probbaby if the hippo was fully grown, yes. :)
a full grown hippo