Hornwort Browning?

[phantomlink]

I moved my livebearers into my bedroom tank since I lost alot to some fungus which spread in the tank. I've added most of my hornwort to it, I've added some liquid ferts and theres more light per gallon then there was when it was in my 125 gallon tank, but half of it seems to be dieing. Either most of the plant is brown, or half the plant is alive and half is brown. Some of the good hornwort is mixed anywhere from near the top of the tank, to the middle of the bunch, to the bottom near the sand. Whats up? I've got alllllot of pieces to clean out of my intake

 

[Ps3Steveo]

Well it's a fast grower and could have used up the nutrients in the tank quickly and if it has higher light you may be forcing it to do that faster. What size at is t in now and what lighting does it have?

 

[phantomlink]

I'm not really sure how large it is, but it was fine when sitting in my 125 gallon, and even most of the stuff I left in my 75 gallon is doing ok. The light is 29" long T8 I cant get the bulb out to check atm but I assume its somewhere around 24w or so. The liquid ferts I'm using say they have 3% Soluble Potash (k20), 0.00001% copper, 0.24% Iron, 0.01% Manganese, 0.0009% Molybdenum, 0.00014% Zinc, with Kelp and Vitamin B1 added. It says to make sure the Iron doesnt go above 0.5mg/l but I have no idea how to test that

 

[Ps3Steveo]

Any chance the browning part wasn't getting light at some point?