View Full Version : How often to change 4dkh solution?

06-19-2010, 09:40 AM
Well, the title says it all pretty much: how often should I be changing my 4dkh solution in my drop checker? I don't need dead on accurate results, just accurate enough to let me know that green still means I have the right amount of co2 in the tank for good plant growth. How often do you guys change it out, or what would you recommend?

06-19-2010, 01:31 PM
I change it once a month. It works well for me.

06-19-2010, 06:43 PM
Some change it when they do their weekly maintenance, others like Rich wait a month or so. A month is a good schedule.


06-19-2010, 08:12 PM
Ok, a month it is then. Thanks guys.