High KH

[7thheaven]

Hi~ :smash:

A several days ago, there was temporary power off in my house.

beacuse of CA reactor problem, I should reset drops of co2...

After that happend, I realized that my corals color and growth was better

than before. and brown film in my tank was gone.

so I checked KH,MG,CA level, and I found KH level was

increased by CA reactor (10.6 in salifert test kit)

It maybe coincidence, but I still remain KH level 10.6

and my corals seems to be OK.

Should I reduce the KH level again 7~8?

[keigo]

from what i know.. alot mention high KH will lock coral grow... thus prevent them from getting cal...

But this is what I found out recently also... last time reefing ppls keep saying a high KH is gd...

[Todd March]

There always seems to be such huge swings in reef keeping methodology before a middle ground is found...

Almost all of us used to keep at our tanks at 10dKH and above for years as it was generally thought it helped with faster growth. Then we started to hear it might be the cause of RTN and STN and that it was detrimental to corals...

So now we have all dropped back to much more natural levels—7-8dKH. Besides being what ZEO recommends, many non-ZEO reefers are following this as well...

I wouldn't be surprised if after lowering our alkalinity levels we find in the long run a little higher buffer (9dKH or so) is better overall...

We shall see...

[7thheaven]

Thanks~

It is not easy what the answer is..

[Todd March]

Yeah, it's gunna have to be trial and error... Since running ZEO, I have not cared for the look of my tank when the dKH falls too much under 8. I have shot for 8dKH recently, and it seems okay, but I am trying to figure out why my corals are all turning brown, and one of the suspects is not running my dKH at 9 anymore...

[Aged Salt]

Todd, plz. stay with the guidelines--help is on the way in the form of Start2 which will revolutionize the ZEOvit method, as it's virtually non-toxic to the corals & will color the corals by knocking down nutrients to levels you've never experienced previously Bob

[Todd March]

I am looking forward to it, Bob...!