Calcium oxide or hydroxide?

[laurentm]

Warner Marine Research sells 2 kinds of Kalkwasser. One is Calcium hydroxide the other (kalk+) is Calcium oxide. Which one is preferable. Any advantages/problems using one or the other?

Thanks.

 

[Randy Holmes-Farley]

You cannot use the oxide in a limewater reactor as it gets too hot when it initially gets wet. It can actually melt some models.

Otherwise, there is little important difference. I use the oxide, myself, because that is what some local reefers got in a group buy.

I detail such issues here:

What Your Grandmother Never Told You About Lime
http://reefkeeping.com/issues/2005-01/rhf/index.htm

 

[laurentm]

Thanks Randy.

 

[Randy Holmes-Farley]

:thumbsup:

Happy Reefing.