Im about to start a modified EI routine on my 75, and Im trying to figure out a good dosing schedule to begin with based on the above recipes. I just got the EI pack from GLA plus a bag of their iron chelate. I plan on dosing dry for the time being.
Here's some details on my set-up, mid-tech is what I call it (med light, moderate CO2)
2x54w T5HO Hydropinic fixture, 20" from substrate:
DIY - in the 15-20 ppm range
5 ml Metracide daily, down from 15 before CO2
100% BD blasting sand, Osmocote root tabs around the swords and crypts.
Heavy, feed once or twice a day.
Ive used Flourish Comp since starting the tank. Besides that Ive been using Seachem liquids for about a month, N P K Fe @ about 1.5x "beginners dose" three times/week. (which isnt near enough macro btw) Before I added those my nitrate and phosphate were practically zero all the time, even on day 7 right before a weekly water change. (lots of stems and wisteria, picture is in my sig for a general idea)
Pretty sure I dont need to do full EI, considering light/Co2 levels, so I was thinking about starting with the 55 gal dosage, twice a week. Mon/Tue and Thur/Fri, with a 50% WC on Sun.
How does that sound? Would 3x week be better, or maybe the 75 gal dose 2x week?
Also not sure if I even need the extra iron but I got some anyway. Thoughts on that? If I decide to use it, does 1/16 tsp on micro days sound about right?
Thanks in advance for any suggestions. This thread has already been so helpful.