I got my daughter her first betta the other day and I would like to add some easy to care for plants in her tank that wont take over. and wont cost me a bunch we don't have a lot to spend on our project. I have read that Marimo Balls and Flame moss are both easy to care for and don't require much maintenance good for a 5 year old home school project. she really likes the Marimo Balls and our local pet store (only one that's with in 2 hours of us) happens to have a few. I like Flame moss I would like to use it as a carpet in her tank or may be on a small cave. Its not a huge tank and I would love to get a little starter of it. our local pet store does not carry it. any suggestions.