kH and pH and Calcium problems

[brotherd]

8.5 ph is nothing to worry about.Seachem recomends 8.3. your numbers look pretty good actually. Watch the tank and strive for consistency/stability.When did you last do a water change?

[Aquattro]

What salt do you use? What salinity/SG do you have the tank at? How often do you do water changes and how big?
450ppm is the high end of [Ca], if you're struggling to get Ca up, aim for closer to 410-420. Really, anything over 380 is good, but low 4's leave you room for slipping a bit.

[bkelly]

try dosing at night when pH is lower, i raised my pH too by upping my dosing to get parameters up, (use 2 part recipe) i think ill dose less more often and try doing any substantial adding in the night.

[moppy]

I use Reef Crystals and have been pretty happy with them.

Water change every 2 weeks. Last one was last weekend. 20 gallons for the 120 gallons that I have.

Everything looks relatively happy although I seem to lose my torches/frogspawn kind of corals.

Salinity is at 1.025.

[Cal_stir]

Check this out.

http://reefkeeping.com/issues/2006-02/rhf/index.php

[Aquattro]

Something isn't right then. Reef Crystals is pretty high in Ca, and regular water changes should bring it back up to level with moderate consumption. Unless you have a tank overflowing with SPS that need trimming every other week, your Ca shouldn't drop to 300. Can you verify that number on a second test kit?

[moppy]

I did get it checked by JL and my readings were all correct...