Google says 1 tablespoon = 14.7ml, Canuck's one video says he used 2tsp/gal, another video said 3tsp/gal. of the Gaia 4-4-4. How much is too much? I think I added 6tsp/gal to mine by mistake.
@cannydoit, my understanding is that because it’s time released, you really can’t give it too much. The plant will only uptake what it needs. You just have to adjust the next feeding. I usually let them go about 4 weeks. Canuck used to use 1 tbsp more than recommended but now he uses the recommended amount. I think you’re fine by giving that amount.
Nice set up! Excited to watch you grow this out. I’m doing something similar but swapped out the Gaia nutes for Down to Earth, check mine out if you can.