Acceptable ALK swing for my SPS? Is this Stable enough?

[rds85]

These are screen shots of my parameter of the last couple weeks. I am just wondering if this is considered stable enough for successful SPS growth. I do have a fair amount of SPS and some are doing great with growth and color while others seem pale and discolored. I want mine to thrive and not just survive. This tank is an upgrade from a 55 gallon reef that was switched to his 75 gal rimless on Jan 2nd of 2014! so roughly this tank is all the stuff from the 55 and about 6 months since then.

Anyone got any recommendations for me?

The reason for the increase in nitrates is because i was told my tank seems to act like a ULNS, therefore i began to dose ACROpower (3days ago). The most recent ALK test was in the morning right after i dosed the two part, while the rest are afternoon and night time readings. I also dose vodka about 0.4mL twice a day. I run HC GFO from BRS. I run chemi-pure carbon. Vertex-Omega skimmer. Small fuge with cheato and calupra.

Sorry the photos i have attached are from my phone and not good quality at all.
(Yes the algea on the sand bed and some of the rocks is Red turf Algea ( got Large MEx's and they are somewhat eating it but would love to be able to rid the tank of this, but more important is the health of my SPS)

If you guys need anymore info please let me know!

 

[rds85]

I have added some corals since these photos and a clam along with some fish if you want me too post updated photos ( the ones above are about 2 weeks old)

 

[rds85]

No one?

 

[jda]

Strive for none. .1 is probably ok, though, for a high quality SPS tank. More is not the end of things, just that the coral would probably grow better and be more colorful with pure stability. Mine has not moved in years. I use a Calcium Reactor. I also have my water changes down to be exactly what the tank has. The more stable the better.

 

[rovster]

Looks good to me. You are well within the margin of error for those tests, so in my opinion, it looks "acceptable". Mine acutally fluctuates a little more than that and my SPS corals are fine. I don't have crazy growth, but my colors are very good.