I have been reading up on the nitrogen cycle and it has perplexed me a bit but thank you for clarifying. I unfortunately cant really afford a larger tank, money or space wise as a college student, but perhaps i will save up towards one in the future. The testing doesnt bother me. i will get a test kit then it seems. can i get one at a pet store? id really like to get my poor betta out of her vase asap. but if it takes time to make it safer i suppose it is worth it.
Look on Amazon for the test kit. The prices are usually better than what you get in the stores. Also, Petco has a dollar per gallon sale about every quarter, and all rectangular tanks 10-55 gallons are typically sold at the dollar per gallon cost. I bought 3 10 gallon tanks at the last one, and was told there would be another in December, but YMMV. That's about 20 by 10 inches long, and I can't remember how tall. I was surprised at how much useful stuff can be found on Amazon.