I seen this and thought… That can’t be right…
Or is that how you’re supposed to do it with that kind of light?
Sorry about the 1st pic. That’s not the 1 i wanted to upload. 
Those are probably for co2. I bet they are either mushroom buckets or sugar and yeast reactors. Both are natural source for higher co2. But I see what you mean.
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Dwight @Noddykitty,
But isn’t CO2 1.5 times heavier than air? So, it is also a weight, just a very light one, if that makes sense? 
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