DUH, didn't think so but this newbe had to ask.
Its been a few hours so I redid the chemical tests. Results:
Ammonia = 0.5
N03 = 5ppm.
kH = 90 ppm
pH = 6.2
C02 = 94.6
New planted tank, new DIY C02 which is now bubbling like mad. No fish in there just yet - they're on stand-by in the spare 10 gal. just raring to go.
I added one tetra earlier tonight and he gasped and kept to the top of the tank so I plucked him back out and returned him to the other tank - afraid the water was out and I was torturing him or something.
The C02 is high because of the use of peat moss below the fluorite substrate, that understand.
(1) Are there other measurements that would be helpful?
(2) Am I just a worry wart about the fish and ought to toss some in?
(3) Are the rest of the chemicals ok?