What's happening on the tips

[hkgar]

HI

I am very new to SPS keeping and things seem to have bee going well but now some of my tips on Acros aren't looking good. Is this anything to worry about and what can be done.

CA 420
dKh 7.5
PO4 .02
Nitrate 7 (was 25 10 days ago but have been able to bring it down with starting vodka dosing - currently 1.3 ML per day)

Flow 2 Korolia 1400, 2 Koralia 750, return Mag5
Lighting 2 AI sols

Tank 90 gallon with 20 gallon sump.
Aquac ev 120 skinner
3 fishes reactor 150 with Rowaphos
Aquaclear 100 filter with sponge, carbon and some kind of ceramic inch tubes

http://i1084.photobucket.com/albums/j409/hkgar1/photobucket-1832-1318197389933.jpg?t=1318197391

http://i1084.photobucket.com/albums/j409/hkgar1/photobucket-4511-1318197347406.jpg?t=1318197348

http://i1084.photobucket.com/albums/j409/hkgar1/photobucket-6053-1318197299409.jpg?t=1318197300

 

[Bugger]

the ppics dont work. The Ntrate issue could have done it

 

[mushroom head]

Test your magnesium..was the problem with mine one time.

 

[dantdodge]

Has your alk always been that low I have dropped dkh from 11ish down to 8 or 7.5 and my acros did not like this at all I noticed immediately. This could be the cause just my personal experiences and I have dropped the alk several times and had this happen. Just check to see if there is a big swing. I think that they will be alright. Maybe try raising it and bringing it down slowly so they get used to it.

 

[hkgar]

Here are the pics, I hope

Mag is 1450 and Alk up to 7.9 with last test

 

[oneradtek202]

kinda hard from the pics, but looks like new growth???

 

[Sisterlimonpot]

I agree, I really don't see any issues. looks like they are growing. Keep an eye on those nitrates though.