Wouldn't you need "fazla" to give the "too" meaning?
Please add ''so small" to the answers!
In the future, you should use the report button and not post here. It is the best way to bring things to our attention when it comes to added alternatives.
I am also confused about çok/fazla. If you just want to say that it is very small... Ah, does küçüktir makes the difference?
I think "çok" mean "very/too/so" and "fazla" mean "much" ..
so when you say "çok fazla" , it will mean "too much or so much "