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Yellow leaves
w tank
>
>I got my new 75 planted 3 weeks ago and all appeared fine
>until today. Anyway I use tetra tablets in the substrate,
>and Flourish fertilizers. The water parameters are as follows
>ph=6.8
>No3=0
>Po4=.4ppm
>Fe=.1ppm
>gh=7 dgh
>kh=4 dkh
>I use 2 175 watt halides, 250 watt cable heat, yeast Co2,
>and a trickle filter. Temp is at 80 degrees.
>Anyway my contortion (?) val has turned greyish and will
>probably be removed and some of my other plants have yelow
>spots.
I would guess either magnesium or nitrogen deficiency (though I'm not sure).
I've had the same problem with fungus. At first I tried removing the fungus
but it just grew back. I finally took the driftwood out, stuck it in a pot,
and boiled it for an hour. Rinsed in water and stuck it back in. No
problems afterward.
Hope this helps,
Roni