Need help dialing in dosing
I'm looking for a little help dialing in my new tank. In the past, I've run a medium light setup (shop lights at about 2.5WPG, c02, EI dosing) over my 150 and had great growth on the plants I was growing. This is my first attempt at a high light setup, and I'm not really getting the growth rate I was expecting so I'm not sure if it's the plants or the dosing or the light. Here's my specs:
Current Sat+ Pro - full spectrum setting, 10 hours, 100% on everything (no algae yet, surprisingly) 19" from substrate
EI dosing - 1/4tsp kno3, 1/16tsp kh2po4 3x/wk; 1/4tsp GH booster 1x/wk; 1/16tsp trace 3x/wk
c02 - should be around 30ppm. KH4, I'm keeping the PH at 6.6 (API drop test kit)
The tank is currently only planted about medium density so far. I'm still waiting on some more plants to arrive. The Amazon Sword is growing very well, a new leaf every 2 days. But it has root tabs. What has me concerned is the stem plants, Rotala Rotundifolia, Rotalla Wallichii and Bacopa are only growing about 1"/wk. If that. Everything seems happy, no rot or shedding, colors are good although a little more pink on the new growth would be nice, but it's just not a lot of new growth.
Thanks in advance for any ideas!