/r/Jarrariums

Photograph via snooOG

What is a Jarrarium?

Feel free to show off your own jarrariums, as well as get advice and help others set theirs up.

If you want to make a jarrarium, this guide should help. Don't forget to post pictures of it here!

Rules

  1. Follow reddiquette
    Reddiquette is the basic set of guidelines this sub follows.

  2. Be related to the sub
    Your post must be of or related to Jarrariums. Your post may be removed or you may be asked to take it down. Excessive unrelated posts could result in a ban.

  3. Be nice
    Unnecessary rudeness will result in a warning and eventually a ban.

Related Subreddits

/r/Jarrariums

136,472 Subscribers

30

Ideas for this one?

Looking for ideas on this 1g jug. I have a couple Opae Ula jars.

2 Comments
2025/02/02
13:58 UTC

3

Any suggestions what I could put in this?

I have this old (dead) terrarium vase that used to house a bonsai and some moss. It's like something more interesting though, possibly something (semi) aquatic although I'm not sure if it's strong enough for the water. It measures about 15cm wide and 40cm high. Looking for suggestions and inspiration! Thanks very much!

0 Comments
2025/02/01
19:23 UTC

3

Water vs non water jar

Which jarrarium do you think would be easiest/low maintenance?

Wanting to make one but not sure where to start lol

0 Comments
2025/02/01
19:11 UTC

157

Anyone know what this is

Her names Dolores and she's beautiful

23 Comments
2025/02/01
12:10 UTC

29

First snail I call him Duncan

1 Comment
2025/01/31
12:43 UTC

46

Some of my jars and my lil moss house

3 Comments
2025/01/30
13:52 UTC

11

Pond snail egg clutch up close + a copepod zooming by

4 Comments
2025/01/29
15:27 UTC

23

Probably a week old

0 Comments
2025/01/29
10:27 UTC

20

Is this much light enough?

35 PPFD, 2 DLI, 200-400 lux

0 Comments
2025/01/28
09:40 UTC

96

Smallest Jarrarium

I have several jars of various sizes and compositions. I accidentally created my first in 2007 when my Daphnea began breeding in a 250 ml beaker which I had sealed with plastic wrap and a rubberband to prevent evaporation.

These days I keep them for donating water and substrate to accelerate tank cycling, often for keeping live baitfish.

Here is currently my smallest jarrarium-

1 mL sample vial Chesapeake Bay sand green algae filaments several live ostracods

2 Comments
2025/01/27
19:32 UTC

13

What creature is this

I sped up the video because of his slow ass but anyway I have no idea what he is, probably some kind of snail? Creeped me out a bit when I first saw him ngl but he chill

7 Comments
2025/01/27
19:12 UTC

31

Open - ferns n' mosses

2 Comments
2025/01/27
10:06 UTC

44

Idk if this counts but

Pink polka dot plant and moss

5 Comments
2025/01/27
04:14 UTC

7

collecting soil/freshwater in winter?

hey all, ive been in love with the idea of making my own little jar ecosystem for ages now and i finally feel courageous enough (lol) to actually give it a try. i want to make a mostly underwater jar, and it got me thinking about seasonal differences. like, im in central europe and most ponds etcetera are currently frozen. would sourcing soil and water from these places in winter be a bad idea? should i wait for spring to truly hit for better chances with plants and possibly tiny critters? i know technically there should still be enough life in those substrates, just dormant for the cold season, but im wondering if waiting just a little longer might give me better chances with the whole project.

also more of a side note, but im also curious if anyone noticed seasonal differences between jars they started during different times of year, like other plants and the like. if true itd be like a tiny sample of that time period, super interesting stuff..!

2 Comments
2025/01/26
19:39 UTC

9

What's this chap

Sped up

4 Comments
2025/01/25
21:35 UTC

16

At PetCo

Just saw these and thought I'd share. What do we think of retail jarriums?

5 Comments
2025/01/25
15:27 UTC

12

3 day old jarrarium

I took some biomedia from a fully established fish tank, and added plants and water from the same tank. 3 days later and I already have signs of life! I can’t wait to see what I wind up with as this matures!

0 Comments
2025/01/23
22:37 UTC

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