When I went to use my tea last night I noticed a new scent to it. It smelled sour and yeasty. I discarded that tea, soaked my stones in a bit of h202 and scrubbed then. I then set them in a new batch of tea. Once plugged in there were zero bubbles coming from the stones.
1. Was the first tea bad?
2. Did the lack of bubbles make it go anaerobic?
3. Did I not clean the bucket and airstones enough?
4. Should airstones be soaked overnight before using again?
5. Have you medicated yet this morning?
Thanks
1) Most likely, yes it was bad. Unless it has a sweet earthy smell reminiscent of soil and/or the molasses you added then it is likely bad. When in doubt, throw it out.
2) Definitely, yes. If your tea container (5 gallon bucket I'm guessing) didn't have oxygen bubbling in it then the only bacteria that would be able to survive in those conditions are in fact anaerobic bacteria.
3) The problem is more than likely in your airstones than anything else. H202 isn't nearly enough to do the job of cleaning your airstones, but it does help for sure. After every tea I would make, I'd rinse what I could out of the bucket in the shower. Anything that was too sticky to remove was then soaked in soapy water with a tiny bit of 91% ISO alcohol to remove the residue. As for cleaning my airstones after every tea, this is what I would do. Get yourself a tupperware container/bowl/etc and fill it with a mixture of water, H202, and 91%+ ISO alcohol. Keep the stones attached to your air pump and keep it on for 24-48 hours. This way your airstones will not only soak in this solution, but they'll be attached to your air pump making it that much easier for them to get clean. I'd leave my airstones running in that tupperware container full of water/h202/91% ISO for a good 24-48 hours and they'd be damn near good as new. After about a half a dozen to a dozen brews, you will in fact need to replace these again. I recall spending $7 for 4 tiny airstones for my pump, so even if you have to replace them monthly it isn't the biggest deal.
4) See above. I definitely recommend letting the airstones bubble in the solution I outlined above for at least 24 hours. You can get away with this for a good 1-3 months (depends on how much tea you're making) until you have to purchase new ones. Personally, I wouldn't recommend the long rectangular stones. When I would make teas, I'd go to Petsmart in the fish section and spend $7 for 4 tiny airstones in a package. I'd replace these every 1-2 months depending on the amount of tea I was brewing.
5) Naturally