r/Jarrariums

This sub inspired me
▲ 19 r/Jarrariums+1 crossposts

This sub inspired me

Went out to a slow creek and took some sediment and plant from a much slower part of the stream. Currently, just keeping it opened the air with a cloth and rubber band over the top.

How can I know the best time to cap it if I want to do that?

u/rami_65 — 1 day ago

Gathered some dirt, plants and some stream water in Malaysia. It has been about 4 days and water is still not settled and no signs of life. Doing this with my kids so they can see what’s going on. How long does it usually take to have some movement?

u/vickers_777 — 2 days ago
▲ 188 r/Jarrariums+3 crossposts

Hoya endauensis in the closed terrarium – from initial cutting to bloom: https://hermetospheres.com/2026/07/02/the-hoya-from-river-endau/

u/Hermetosphere — 4 days ago

Just a few hours into settling

My very first jar! It’s so new the sediment hasn’t settled yet but apparently the park near me is full of leeches !
There’s no fish in here so they’ll starve, no? I feel bad like I should remove them and put them back.

Nervous about the closed system too since I’ve never done that and always had a bubbler or open top

u/whyrallmyuserstaken — 2 days ago

2 gal cookie jar tank filter suggestion

The light is temporary till I get the new one in the mail and ordered a small little air pump sponge filter but not sure about it.

u/icefish548 — 3 days ago

Any thoughts?

Getting ready to get some more plants and cherry shrimp this Saturday, I need to find something that’ll eat the detritus on the floor cause it’s getting gnarly

u/Caboose007 — 3 days ago

How do you clean ramshorn snail poop in a jarrarium with substrate?

Basically the title.

I got ramshorn snails and im planning on making a jarrarium with them living in it, but how do you guys clean up the poop when theres also substrate?

reddit.com
u/markescueta — 5 days ago
▲ 30 r/Jarrariums+1 crossposts

GIVE ME YOUR IDEAS

This is a 38 inch glass chandelier that I’m going to be turning into a terrarium. I have a couple ideas, but I can’t pick one. So what would you do with it????

u/Kris10chaos — 7 days ago
▲ 255 r/Jarrariums+4 crossposts

The creatures living inside my most recent jarrarium

Swift SW350, Galaxy S24, various magnifications

u/Thrawn911 — 10 days ago
▲ 24 r/Jarrariums+1 crossposts

Day 1 Jarrarium! Would love tips!

Got all the contents of the jar from a beach side lake. Lid is still off, planning on closing it at the end of the day. have some plants that are sticking out the jar and will cut leaves off. And what is this creature?

u/uconndon — 9 days ago

Had this for a few months, now I want to add to it.

I put some leftover moss from a terrarium in a mason jar and then filled it with water. Just wondering if I could add any little creatures to this or if it's better to just let the moss do it's thing.

u/CrayzeyHayzey — 7 days ago
▲ 19 r/Jarrariums+2 crossposts

2g (7.5L) Cookie Jar

I have basically no experience and I just started a saltwater reef in a cookie jar. Day 2 update inside.

I saw a pico reef build on Instagram and thought “how hard can it be.” Two weeks later I’m standing in my Amsterdam apartment watching a 7.5L cookie jar cycle on my desk.

Live rock and sand straight from my local reef shop, pre-mixed saltwater, a clip-on LED, a nano air pump, and a tiny heater. That’s it.

Day 1 the water turned completely white and my pH crashed to 7.6. Turned out I had the lid on with no surface agitation — air pump fixed it overnight and pH is back to 8.2.

Ammonia just hit 0.50 ppm this week so the cycle is officially doing its thing. Plan is soft corals and LPS once it’s done — zoanthids, mushrooms, maybe a duncan.

u/pwhelpley — 9 days ago

10 days old jar already alive

Hello,

I put freshwater, moss, dirt and twigs in a 4L jar 10 days ago. There was nothing in it until like 2 days ago when I looked.

Could anyone id the first white insect and also the little snails if you can? Thanks!

Also, I've got no experience in this before so feel free to give tips/advices :)

u/PrivacyTerm — 7 days ago

Moss turning brown

Hello, I've lurking around here for a long time but never got to start my own jarrarium, the thing is that last week I found a stand selling them already made so I thought it would be a great place to start, they said it had been going for 8-9 months already.

Anyways, I bougth this one and I've had to keep it in a pretty dark place all this week. Today I noticed the moss turning brown and wilting as well as the other plant behind with the green/pink leaves.

What should I do? Already moved it to a sunnier place but without direct sunlight and also carefully added a little water, not much. Also noticed that the lid does not close too well.

Is there anything else I should do? Can someone guide me as to what species I have so I can look for specific care? Should I make sure that the lid is airtight?

Thanks in advance, and I hope to start being around here making more jarrariums in the future.

u/morkre — 9 days ago

New baby jar

I recently learned of terrarium putty and had some left over from my big project.

Reused a juice shot bottle

u/Status-Carob-5760 — 11 days ago

Plants & Light set up

Can’t remember the plant names off the top of my head but we got a Rams horn Snail and we’re gonna wait a while longer before getting the shrimp in, hope y’all enjoy cause I’m really proud of it so far!

u/Caboose007 — 12 days ago