cycling a tank that's been seeded - what should I be looking for?

[labloverl]

Hallyx, I only have 3 betta fish that are in my 10 gallon. I didn't put one in there because there was the nasty slimy water. That has just now gone away. I'm now ready to get another betta to go in the 5 gallon permanately.

starrlamia, the 10 gallon that I seeded the 5 gallon with has been up and running for close to 8 months.

I'd like to try to get the api test kit this weekend before putting a new betta in the tank.