88
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So I’ve been getting a new building up and running and have been taking dissolved oxygen readings of all my successful undercurrent rooms to get an idea of what DO levels I should be shooting for in my new building. I have a Hanna DO meter and I’m getting readings of 89-98 percent in different rooms. Seems to be a range between those numbers and all the rooms are very productive.
I’ve been struggling in new building with weird curled leaves and either a deficiency or toxicity and thought I’d check DO levels.
The new building had DO levels in the system of about 89 percent so I stick another 60 lpm air pump in the system and it brought DO up to 93 percent.
Am I chasing my tail here? What are you guys running your systems at as far as DO saturation?
 
1,597
263
All my years in DWC and I've never bothered with DO levels, only ever ran 2 inch airstones in any rez. It's not an oxygen problem your plant is suffering from.
 

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