Plants turning brown

Ok here is the deal.
80 tank with ada ps and ada amazonia
220 watts w/AH Supply reflectors
pressorized CO2 w/drop checker
3 weeks new/
ammonia,nitrite = 0
nitrate = 10-25
po3 = 1-2
gh = 1ppm
kh = 5ppm
CO2 = 1.5 pps
Drop checker is very light green almost neon
temp is 80 deg
iron = 0 my iron test is redsea and I don't think it works always 0 or blue
I added 2 caps of seacem iron this a.m. or .1ppm
I do water changes every 2 days 50% to 75%
I am dosing EI at 75%
Every day in-between water changes later in the day after I add the ferts the plants get worse most are turning brown and the leaves are curling.
Green for the anubias.
After 75% water change plants started periling for the first time, water gets clearer and less green.
lights on 10.5 hours .........today I am going down to 10 hrs.
Any ideas?
I have been reading for days.
The water goes from a PH of 6.5 to 6.9 durning water change. according to milwaukee meter
Thanks

 

Sorry my bad 1 degree for GH and I bought 4dhk from someone on APC.

I am using gregs gh booster.

 

Great current. I even drilled holes in one of the spray bars. Just a couple holes stagered for better coverage. I have the co2 come on an hour before the lights turn on and shut off one hour before the lights shut off. I also have another 110 watts of light turned off... too much light? the bulbs are only a few months old. (6700)
For some reason my co2 diffusor doesn't seem to work like it use to. I could never see the co2 before but now I see little bubbles come out of the spray bar.
I did a 75% water change last night and this am the plants are still pearling a little.

 

Update

Paid more attention to CO2 per V's advice and have lowered it or bumped up the bps from 1.5 to 2 bps.
Increased EI from 75% dose to 100% dose.
reduced lights from 10.5 hrs to 10 hrs but am thinking about going to 9 hrs.
Trimmed plants for increased flow.
After reading Toms thread about flow I am considering buying a powerhead to increase flow.
Any suggestions for powerhead or such device to increase flow?
I have a eheim 2026 that does 250 gph. is this good enough if cleaned on a regular?
I also added to the tank my pelco and two of my sae. I am adding fish slowly to the newly cycled tank.
This has helped big time.

Thanks for your previous and future help.
Mike

 

I am using the Gh booster as mentioned on EI light but will test and add more to get to the 4 or 5 dgh.
Is the ehiem 2026 with 250 gph enough water flow or should I find a way to add a power head?
I have darf lily plants and they are getting really tall. I am wondering if the lights I purchased are any good.
Don't the lily plants stay low if the light is high enough?
Should I turn on all lights for a total of 330 watts?
I will purchase some lights from AH supply today.


Thanks Hoppy or V

 

"Most issues revolve around CO2 and water flow(which is related to gas and nutrient exchange in aquatic systems) if the nutrients are non limiting".

This got me to thinking about the CO2 as well. I do believe this has been the main problem with my tank.
I did lower it again yesterday but have been doing in small increments due to fish in the tank.
I will see how the plants faired today and lower again. I have been trying to keep the co2 consistant and adjusted in baby steps due to the fact I am not home all day.

Thank you very much for your responses and time.
I know it can be done.
Mike