best way to lower PH and ALK

[geekrat]

What would be the best way to lower ph and alk in a reef tank? Mine is a little high and i need to get it lower. any help would be great.

[gregt]

Wait.

Seriously, the only way to lower it safely is to let it lower naturally or do a huge water change...

[geekrat]

will i run into problems with my fish or crabs? i was afraid i was gunna have to wait it out.

[gregt]

Define "a little high"

[geekrat]

my alk test is not numbered out so im not sure as to the exact levels of it. My ph is about 8.5 8.6

[mapster]

8.5/8.6 is at the high end of the "safe zone". Like greg said, let it lower itself naturally to avoid stress to your inhabitants. Stop dosing anything that is affecting ph/alk. Check your top-off water levels and your test kits.

What are you using to test alk? Why cant you get a number?
What are you using to test ph?

[geekrat]

im using marine lab red sea ph and alk tests. there is just a color scale on my alk test that goes from low- medium- high. Kinda stupid i know. I did a 25% water change right before i tested and it came up higher than normal. Im savin up for a ro/di unit. this could be the problem but im not sure...