Yes, for God's sake, get them into a bigger container as soon as possible. Don't use your own garden soil, go buy some really good (don't buy cheap) potting mix. I plant my pot tomatoes in 15 gallon containers, but since Patio is a dwarf plant, you could probably get away with a smaller container. I'd like to see 10 gallon, but if all you've got is a 5 gallon, then make sure it gets watered every single day. When it's hot, I water my pot tomatoes every morning.

Thanks for your advice. I repotted them with really good soil and they look better all ready. Thanks again!

To make a long story short, when tranplanting seedings, I mistakenly transplanted a tomato plant (sub-artic 24) into a very small (4" diameter indoor pot) Once I realized this, I figured that I would see how it would do indoors. It had a nitrogen deficency (identified thanks to that color photo nutrient deficiency link!!!!). The plant is green again :)
Now this plant only has about 6 branches, but is about 18" tall. I can just barely see baby buds forming on the canopy. Can I transplant it into a bigger pot?
Next question- it has been indoors all this time, sitting on the window-sill of a southern facing window (getting about 18 hours of light a day). The window is usually open during the day. Can I move it outside? Do I have to harden it off?

Thanks for your help!!!

Kim- a newbie grower

I found my answer below. I will replant and see how things go!

Thanks!
Kim- a newbie grower

Here is a link that might be useful: container gardening - repotting tomatoes