Hi! So I've gotten fairly interested in Coldwater Tanks, thanks to the Catarina Gobies and Hulafish, and thought having a Coldwater Tank would be pretty cool! I kind of want to have a twist to mine, by having it planted. Doing some research led me to no results, so, what kind of Coldwater Macro Algae there? Somewhat easy to grow as well? Thank you! The tank would be around 10-20g for a small group of Catalina Gobies im planning