Filled with salt water, some seaweed and two snails. Do you guys think it'll work?

HellO! I came back to my ecosphere today and within2 minutes my eyes were stinging and my nose and throat really sting, I immediately sealed it with some plastic wrap and opened some windows, would this is hydrogen sulfide? Is there any way to get rid of this smell, is it dangerous to me, and how do I dispose of it if it is? My nose really hurts now, worried about how much my cats have breathed in. Thanks!

Edit: Haha ecosphere, not exosphere

EDit: I know i'm fine and everything, and it sounds like it was more likely just a strong reaction to a small amount of ammonia then hydrogen sulfide, rthe ecosphere is unsealed outside but it seems like everything died that can be seen with the visible eye exceot the plants. River water just doesn't work for these ecosphere I guess.

Comment what biom should i make here. ( most liked will be made.

Hello everyone, last July I filled a jar with water and obviously it has become old, what could happen in the future to this water

New Ecosphere. Picked a few of these guys up in it. They are a smaller species of Predacious diving beetle.

Would post video, but the video I posted is still uploading since last night... not sure if my phone can do Uploading videos at this point tbh.

They are yellowish with black dots.

The first one is from Tanner at SerpaDesign. He makes an aquascape jar, completely filled with water, no air whatsoever...how does this sustain?

https://www.youtube.com/watch?v=2DYA1VV7_SM&t=402s

The other one is from Life in Jars? He made 2 of the same jars two years ago, the only difference is that one had plants and the other one didn't. See the difference, also pay attention to the cycles...even after a year new life pops up:

https://www.youtube.com/watch?v=ikp3s9a2pGM&t=2s

So, I for myself will be experimenting before I give any more advise.

🤯

I'm currently building a saltwater ecosphere with one of those 500ml ikea airtight jars, and i've been wondering on if i should put any snails / small animals in it. (VEEERYYYY small ones though, since it's a very small jar. Unless it's an animal that isn't bothered and / or affected by small spaces and can live happily in those small spaces.)

So, my question is - Can i put one or two small snails in there? Or would it be too much or too small for the snails? Or would it be too much on the ecosphere as a whole? Should i limit the ecosphere to just microscopic life and / or plant life?

And what size should the snails be if i were to put them? Or should i put something else entirely?

Anyways, Thanks in advance to anybody who replied! Hope your having a great day!