Netcode said:The note about ammonia, as I said, I continue to add it myself. Where I currently have no fish yet, I need to feed the BB.
I received a picture from the seller of the bag he had, he's using genuine osmocote.
That is a lot.. I only use six small capsules.
I'm pretty certain osmocote contains surfactants and polymer coatings, both which can effect the surface tension. Why it's showing up in my tank and not others, still remains a question. It also remains a question if it's even harmful or just a nuisance. There was nothing else added to the tank, just plants.
if you're thinking it is something else, what could it be? I've tried researching other issues, but nothing makes sense. Snails secreting oils? Most other articles say water quality, but besides the air bubbles mine is crystal clear and levels check out. Also I did a 50% water change after the bubbles first appeared and they immediately continued after.
Wish I was a scientist haha.
UPDATE: I just checked my pH and it is down to 6.4 all the way from 7.8. My tank has always been stable at 7.8. This is the first time I have checked pH since adding the osmocote two days ago. I also checked my KH which is now below 10ppm, when normally it sits around 40. So something is creating an acid and using up the KH. This may be totally unrelated though.
Cannot find material safety data sheet for the ammonia you used(Jbs) but more than a few brand's contain surfactant (soap).
Polymer for Osmocote aid's in slow release, and even after inserting the osmocote into the substrate and filling the tank with water,the stuff takes a while before it begin's to leach nurient's into the substrate /water column to benefit plant's (hence the phrase slow release).
I too have used the osmocote without issues such as those in photo for around eight year's now,and several different set up's.
Believe osmocote has ammonium nitrate and that along with dosing ammonia with possible surfactant's would be my suspect.
Does not explain (to me anyway the pH jumping about unless gravel is comprised of or contain's aragonite,coral,or lime.
Do post up the brand name of the ammonia you were dosing at what rate?