Rotala indica and Crypto. wilsii

"I have followed all your instructions, and I'm so pleased with my aquarium. The fish are very lively and look very healthy, the tank itself is crystal clear. [...] Once a week I exchange 5 gallons of water, vacuum the gravel, clean the glass, and [...] it takes me about 30 minutes now that I have the routine down to a science. "

"You are the best info so far I come across the internet. Many thanks."