This is really looking great! That looks like a pretty powerful light, I'm sure it'll be really grown in in the next month or so. Considering its little mailbox incident upon arrival, it's absolutely flourished!
Ah, I see. That was the secret! I've been using rootmedic for my personal ones which has worked well so far. One thing I like about Wabi Kusa is that it's not as exact as our planted tanks... You can just "eyeball it" and get results!
I like the look of the fixture you're using. What is it? Looks like maybe a 2 x9W CFL? Isn't that a lot of light for a freshwater nano? Excuse my ignorance if this is a stupid question. I'm just now starting research on planted tanks as I want to create a new environment for my Bettas and I'm tired of all the hardscaping. I want to do something a little more visually appealing!