r/Ecosphere

Image 1 — Terrarium mushrooms
Image 2 — Terrarium mushrooms
Image 3 — Terrarium mushrooms
Image 4 — Terrarium mushrooms
🔥 Hot ▲ 135 r/Ecosphere+2 crossposts

Terrarium mushrooms

My boyfriend and I’s one and only terrarium that hasn’t been opened since about September of 2025. We added bugs (can’t remember the name) when we made it, misted it and let it ride.

To my surprise, it’s done fantastic, but recently I started to notice little white and yellow dots in the soil all around the jar ….and then all of the sudden the coolest mushrooms I’ve ever seen appeared. I don’t know if this is good or bad, but I’m not doing anything about it because I want to see how it plays out.

Enjoy **◡**̈

u/haydenem — 18 hours ago
▲ 33 r/Ecosphere+1 crossposts

Here are some of my ecospheres at the north-east facing windows. No direct sunlight xcept 20 minutes in the early morning. They are all around 1 year old.

The tall one uses a rope as wick with moss tied to it. The knot keeps the water from evaporating.
The purse is my scud purse. I top off once a week with bottled drinking water cuz this does evaporate quickly.
The globe is my windowsill pond and the little whiskey glass has Suesswassertang.

u/BitchBass — 17 hours ago
🔥 Hot ▲ 1.5k r/Ecosphere+5 crossposts

Collotheca, the predatory rotifer, eating flagellates, one after the other

u/Thrawn911 — 2 days ago

Discover the story of the Asian Violet and find out how it thrives in a closed terrarium. https://hermetospheres.com/2026/05/02/collected-once-and-never-again-since/

You wouldn’t expect this from such a widely grown plant: it appears that all cultivated specimens are descended from a single wild collection.

u/Hermetosphere — 3 hours ago

I made an ecosphere (inspired by this group) 21 days ago. *also garden snail footage

I got the contents of the ecosphere from Hoods Lagoon in Clermont Qld Australia 🇦🇺. So i made this lil video of some of the critters. Also in the footage is some shots of my cornu aspersum snails 🐌 and their babies, also a springtail. I hope you enjoy it.

u/Immediate-Coat-3806 — 2 days ago
▲ 35 r/Ecosphere+1 crossposts

Huge planaria I've found today while sampling my jarrarium. It constantly tried to escape from the slide, trying to go on top of the coverglass.

Swift SW350, Galaxy S24

u/Thrawn911 — 3 days ago

Is this biofilm?

I noticed these white cotton-like spots on the driftwood of my ecosphere after adding my snails to it. Is this a normal biofilm/ mold, or should I be worried? The aquarium isn't even sealed yet. Should I scrub it off or not? Thanks !!

My ecosystem setup:

It includes Hornwort and Moss from a pet store and the species of my snail is Tarebia granifera.

u/bereadybysevenoclock — 3 days ago
▲ 0 r/Ecosphere+1 crossposts

What are your biggest frustrations maintaining a stable ecosystem?

Hi everyone,

I’m trying to understand the real day-to-day challenges hobbyists face with aquariums, terrariums, vivariums, or bioactive setups. I’d really appreciate honest feedback from your experience.

A few questions:

  • What is the hardest part of keeping your setup stable over time?
  • Do you struggle with humidity, temperature, lighting, algae, mold, water quality, or other parameter changes?
  • How much maintenance do you usually need each week? What tasks take the most time?
  • What problems happen repeatedly even after trying to fix them?
  • Have you ever lost plants, fish, reptiles, or insects because something went wrong?
  • Do you use multiple devices/tools to manage the setup? Is that frustrating?
  • What do you wish was easier, more automatic, or more reliable?
  • If one thing could be solved instantly, what would it be?

Even small frustrations are useful. Thanks 🙏

reddit.com
u/Basic-Effect-2910 — 4 days ago

Any tips? 1 day old ecosphere

I’ve started this jar yesterday from a small stream and added a water plant from a store since I couldn’t find any in the wild. Any tips or recommendations to help it thrive? Since this is my first one any help is appreciated.

u/Tobicontinued — 3 hours ago

9 day ecosphere difference

This ecosphere had been sealed for about 6 years but a couple months ago the last few original bladder snails died out and it started to look really nasty. After much hesitation and since I figured the jar was just about dead (aside from some very small copepod like creatures) I decided to open it back up and add 5 new bladder snails to it from the same location I originally made the ecosphere. Needless to say it looks much better!

u/Witty-Composer-6445 — 5 days ago

Can I expand my ecosphere

A few months ago, I made an ecosphere in a pretty small glass bottle with materials from a river. Because it was my first one, I was honestly expecting the whole thing to die off and collapse pretty quickly. Well, after a few days, two scuds appeared in my jar. They haven’t reproduced or anything, it’s just the same two scuds.

The ecosphere is surviving, and it’s gotten to the point where I just don’t think it’s humane to keep my little guys in this small of an enclosure. I am wondering if I could transfer the contents to a larger container, and then fill out the extra space with more materials from the same original river? Will that disturb my systems balance and kill everything?? I don’t want the life in my jar to die, but they really deserve some more space.

Let me know what you guys think of all this.

reddit.com
u/precbstelecaster — 2 days ago
▲ 6 r/Ecosphere+1 crossposts

What animal is this?

Hi. I’ve recently made a tiny ecosystem with river water and these little larvae thingys have appeared. I don’t know shit about river creatures so if anyone knows, please tell me what they are.

u/Positive_Limit_9009 — 5 days ago

I’m re-attempting a saltwater ecosphere after my last one failed, so I added an air pump. Any other tips for me?

There’s also 2 crabs that made their way in, will they be a problem or should I try to get rid of them? Also I don’t see any isopods unlike when I first made the jar at the beach, are they ok?

u/8BitSlasher — 7 days ago

1 month into my self-sustaining river ecosystem in a jar

Watch how the particles slowly settle and the water begins to clarify nature finding its balance. And this is still not the end of the process before it becomes fully stable.

u/_MiCosmos — 6 days ago
▲ 9 r/Ecosphere+1 crossposts

Anoectochilus setaceus and Davallia parvula have been in the closed terrarium for almost three years now.

u/Hermetosphere — 5 days ago