co2 calcium reactor

[bluetang22]

i plan to purchase 10lbs co2 calcium reactor package, please help me to choose the right one and my other question is that ok i use between 200 to 300 gph powerhead/pump for this package.
thanks

[kevinpo]

On my reactors I use gravity feed but I have used a small pump in the past and it also worked well. I like the German Korallin reactors using Knop Koralith media.

Regards,
Kevin

[bluetang22]

i searching i found this Melevsreef.com - Calcium Reactor
i still don't understand how this work, ph level set at 6.9 in order to work but ph level recommended between 8-8.3

[charlie]

I am not a real expert on Ca reactors, but what they are talking about is the recommended effluent from the reactor is 6.9, it needs to be that low to dissolve the media in the reactor. The recommended Ph for your tank is 8-8.3.

[bluetang22]

thanks guys