First time using this tank... brand new out of the box. Distilled water only. Sitting in the same tent with a very healthy lady. So I don't think its an environmental factor. There is a pretty significant event I should mention: Last week I had to toss the dead Diesel seedling from the same tank, and started the LR#2. In hindsight, that was likely where things broke down. I assumed the Diesel was just a bad seed. With this latest result, I am having my doubts.
A mitigating factor is that I'd rather have a GG#4 in there than a LR#2. So I think i'll give it a few more days, and if it doesn't perk up by day 10, I think I'll give the tank a real cleaning and start the GG.