how much is too high for calcium level and what are side effects of 2 high?

http://reefkeeping.com/issues/2004-05/rhf/index.htm

Have you been dosing anything?

purple up but thats up but are there any side effects to to high calcium

High calcium will precipitate out, lowering your alkalinity.

You should stop using purple up, which is a crude form of dosing that isn't balanced. Calcium and alkalinity are connected to each other, with magnesium also important.

Don't dose what you're not testing for and what you don't need to be dosing. You can't know how much to dose until you test your tank.
So, what are your calcium level and other water parameters?
What is your livestock list?
How old is the tank?

In the meantime, read these articles:
http://reefkeeping.com/issues/2007-03/rhf/index.php
http://reefkeeping.com/issues/2007-04/rhf/index.php
http://reefkeeping.com/issues/2007-05/rhf/index.php
http://reefkeeping.com/issues/2007-09/rhf/index.php

i just have shrooms my cal is 550-600
alk is 2.7 i think
nh4 0
ph 8.2
pretty much everything is great

Alkalinity, if it is in meq/L, is okay, but you should just observe it as going past 2.5 meq/L would be low. You don't need to add anything for shrooms; they don't have skeletons.

its was to promote coraline growth

Coralline doesn't need much to grow. What does your newly mixed water test at? If those levels are in the normal ranges, then you don't need to be dosing.

wow your alk is low and your cal is high O.o?
what kind of test kit are u using?

it should be like 6-12alk 400-480cal.

It depends on whether he is measuring in dKH (which I doubt) or meq/L (Which is more probable here).

it is dkh thank u very much

Are you sure? If so, then it is extremely low. Please read this for the normal ranges and dealing with calcium/alkalinity problems.
http://www.advancedaquarist.com/issues/nov2002/chem.htm

What is the test kit brand, and have you checked alkalinity with a different brand?

I'm guessing it's not dkh.

thanks for all the links, lak
great reading!