Kh

[ThErMuS]

I have a marine tank for about a year plus... Without any corals... just some tangs and angels.. i have a problem... my KH is always so high... anyway to lower it??????

Originally Posted by ThErMuS

I have a marine tank for about a year plus... Without any corals... just some tangs and angels.. i have a problem... my KH is always so high... anyway to lower it??????

High KH mean low Calcium.

Originally Posted by ThErMuS

I have a marine tank for about a year plus... Without any corals... just some tangs and angels.. i have a problem... my KH is always so high... anyway to lower it??????

How high? Theoretically CA & KH exist in Hi-Lo relationship. If u want to lower it then u need to maintain calcium at around 300-400ppm, in this way u'll be able to keep ur KH say around 8-10 dkh.

[ThErMuS]

Originally Posted by flame angel

How high? Theoretically CA & KH exist in Hi-Lo relationship. If u want to lower it then u need to maintain calcium at around 300-400ppm, in this way u'll be able to keep ur KH say around 8-10 dkh.

if tt the case...corals wont open up also?

sorry to hijiack , but my kh is about 6-7, is it considered low ?

and from that, can i know my CA level without the CA test kit ?

NSW kh is between 6-8. if you can maintain it at 7 will be good. for ca is between 400-440ppm.

my guess you still need the ca test kit.

Originally Posted by angmoh

sorry to hijiack , but my kh is about 6-7, is it considered low ?

and from that, can i know my CA level without the CA test kit ?

Natural sew wayer level of KH is about 8+.

Originally Posted by loster

NSW kh is between 6-8. if you can maintain it at 7 will be good. for ca is between 400-440ppm.

my guess you still need the ca test kit.

If ur KH is below 8 ur Calcium will be lower than 400ppm which cannot surport a SPS tank.

hahaha... interesting

i always maintain my kh at 7-8 and ca at 420-450ppm

Originally Posted by monsterz1975

If ur KH is below 8 ur Calcium will be lower than 400ppm which cannot surport a SPS tank.

so meaning that the low kh is due to low CA as well ? so i hv to dose KW ? hehe , cos i never add any additivies to my reef tank. btw most corals i'm keeping is shrooms and buttons