Help SPS issue

[redbug1]

I have some mature Acro and Milli that their tips are turning brown. I do not know why. Water permeters are good. Please give me some suggestions//

Phos 0
nitrate 5
DKH 12.5
Alk 1300
Calc 350 This is normai for me..
PH 8.1

[hockeyismylife]

i think your cal might be a bit low and your alc might be a bit high.

[Canarygirl]

I agree, that the ca/alk are out of balance. I would gradually move your alk down to 10 dhk and your CA up to 400. It may be "alk burn" that you are seeing on your tips.

[trueblackpercula]

Alk 1300 ? that has to be wrong
Michael

[McCrary]

I think he might have meant magnesium rather than alk.