hmmmm..well I feed my orchids with 1-1-1 organic fertilizer made from sea kelp. It also contains iron at .01% and B-1 at .09% at about 130ppm...I also add sometimes (depending on the growth habits and time of year) a 11-35-15 with micro-nutrients considered a bloom booster. I think it should be considered a root booster also.lol. I fertilize for 2 weeks and flush for a week. Most of the time Im misting my plants tho.....Im a crazy mister. I never liked drowning my plants...just doesnt seem right...lol oh yah. and no matter what my plants can tolerate. I always use distilled water
Ill have to try some compost tea soon for some good bacteria and maybe ill give up a brew or two...lol...sounds interesting.