r/OpaeUla

Sorry for a silly question… do yall rinse your aragonite?

Putting together a 2.5 gallon jar and I got aragonite substrate. I’ve read it’s notorious for clouding the water but I’ve also read mixed info about rinsing it vs. not bothering. Seems like rinsing is the way to go…

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u/chronicallybri — 22 hours ago
▲ 29 r/OpaeUla

Am I feeding enough?

New bowl set up, no algae yet. I've been feeding the tip of a toothpick amount of freeze dried spirulina twice a week. The shrimps came with poop in their digestive tracks but now a few weeks later, they look pretty empty. I feel like they swim around a lot. Maybe looking for food? I dont want to overfeed and mess up my water but I don't want to starve the little dudes either.

u/Amazing-Mongoose6627 — 2 days ago

Does this look good for ~30 opae ula and MTS?

It’s a 2.5 gallon, I’m mainly wondering if I should get more black lava rock?

u/Swagspongebob5742 — 2 days ago
▲ 18 r/OpaeUla

First Berried Female! Couple Q’s?

My first girly is with egg! Tank is one gallon, about a year old, and has 12 or so shrimp.
What’s the timeline on this, approximately?
Do I need to do anything differently during the egg/baby shrimp era?

u/Drinkup_baby — 3 days ago

Where to buy Large Black Lava Rocks?

I used to buy them from Home Depot from American glass company, 4-6” 10lb bag for $21 but apparently they’re discontinued! Anyone have any suggestions or can share where they’re getting from?

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u/supramkiii — 4 days ago
▲ 30 r/OpaeUla

Why do they all like to hang out on this rock together?

This tank is fairly new, hence no algae. The rock is directly under the light. Are they maybe eating algae that is growing faster in that location? Or are they just having a meeting? This is a 2.5gal.

u/saadinameh — 5 days ago
▲ 59 r/OpaeUla

a year ago to now population density difference in 3gal tank

I really want another tank. lol. a 10gal or 20gal but I don't have the room because I live in a studio apartment. 😂

u/evedamnededen — 5 days ago
▲ 22 r/OpaeUla

Are some Opae ula shrimps naturally white?

New Opae Ula owner. I’ve gotten my shrimps now for a week in my tank. 3 of the shrimps came white, and they are still white. Are there naturally white Opae ula shrimps or do I need to wait longer for them to get their red color?

Tried to get a photo of the white ones but they swim too fast and my camera isn’t that great.

Other than that, they all seem healthy and happily swimming around.

u/eeliikin — 6 days ago
▲ 20 r/OpaeUla

Hydroids?

Do you guys know if these are hydras? They are very tiny and have long hairs on the tip of each end. They seem to be all connected by a line.

Just worried that it might harm the shrimp larvae.

Thank you in advance!!

u/Bing____Chilling — 7 days ago

Just got my first opae ula, does this look good?

They’re all swimming around, I got 10 in here, I have a 2.5 gallon in the back but waiting on a order of chaeto and another 12 shrimp so it’s not to large of a space for them. Does this look good as a temporary holding for the next month or so? I have the light on a 12 hour timer

u/Swagspongebob5742 — 6 days ago

Cerith snails or MTS (or both?)

Tell me your votes and why! Starting up a 2.5 gallon soon with aragonite and lava rocks and a sea fan. I definitely want some snails. I tend to see people keeping MTS with opae ula, but I’ve learned about ceriths on this sub being kept with them. I like the idea of the ceriths being more active/more visible. Obviously don’t want too much bioload and would start with a very small population. Always love to hear your opinions and unsolicited advice is always welcome on my posts.

ETA: I will also have chaeto algea!

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u/chronicallybri — 9 days ago
▲ 76 r/OpaeUla

Do albino opae exist?!

Everyone else is red besides this one buddy

u/woaini1116 — 10 days ago

Opae Ula in Arizona?

I just moved states to Arizona, and I would LOOOOOVE some of these little guys, but how bad of an idea is it to have them shipped given that it's gonna be 100° for the next couple months? Is there anywhere I can purchase them locally? (I am in Tucson) Or would overnight shopping be ok?

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u/LowMemory578 — 10 days ago
▲ 51 r/OpaeUla

New skrimp!

After lurking for a while I finally got my own. It was hard to find an EU seller, but i foud a physical store whcih had them. In this video they just landed in my tank (the ride back home scared them colorless) but about 3 are becoming brighter red by the day!

The stor also had some cool lava rocks with natually formed tunnels, so theyre sitting in there during the day and going bonkers in the morning/evening.

Tank is a 4.7L jar, supplementing with spirulina as there isnt much algae yet.

u/suparspeed — 10 days ago

Brown Spots On Tank Walls & Shrimp Loss

Hello everyone,

My wife has a ~3 month old Opae Ula 1 gallon tank that she put together, and she's got these brown spots of what we believe is alge (diatom?) showing up on the walls of the tank. We also appeared to have lost one of the shrimp that is laying down at the bottom of the tank. When we went to remove him though, he did show signs of life, but then would sink to the bottom and not move again. Below are all of the parameters of the tank, any suggestions or additional information provided would be greatly appreciated!

- Bright indirect light throughout the full day (of sunlight)

- Located in a "warm" room that never goes below 70 degrees or above 75'ish degrees

- 16 shrimp in the tank so far

- Supplement feeding tank Spirulina about once a month

- We did perform the salinity test and it's roughly 1.007-1.008* (I believe we are reading the tool correctly, please let us know if this should be considerably different numbers)

- I have provided pictures of both the tank up close and the room they are in and it's relation between the tank and windows.

We have researched and considered getting / introducing Tarebia Granifera or Melanoides Tuberculata snails to assist, but are not entirely sure if this is an appropriate or correct solution for the exact issue we are having.

My wife absolutely loves these shrimp and their tank and I am desperately trying to make sure that we do any and everything possible to keep them alive and continue to maintain their lives for a long extended length of time.

Thanks in advance to any and all responses, we greatly appreciate it!

*EDIT: the salinity value was originally listed incorrectly, it's 1.007-1.008, NOT all the way at 1.070-1.080, updated to correct values.

u/Find_Deals — 11 days ago

Buying opae ula shrimp in the UK

Hi, I was just wondering if anyone knew of an opae ula seller in the UK? I really like the idea of starting a little tank of these guys but they seem weirdly hard to find here. I'd be willing to pay for shipping from the EU if it's possible to do that in a way that's safe for the shrimp.

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u/Altruistic_Dare6085 — 9 days ago

New Tank Owner

Hi everyone! I'm a new Opae Ula owner and I have a couple questions to make sure they are as happy and healthy as possible!

  1. There's some specs / film on the top of the water - is this normal? Or should I try and scoop it out?
  2. I read online it's okay to have plastic aquarium plants, but then I saw on this sub it's not - should I take them out?
  3. If I can't have the plants in there, is there anything else I can put in there that will bring some color into the tank? I feel like it looks so plain with just the ground and rocks :( I'd love to give them something with some color, or more hiding places!

Edit: I usually keep the lid on, but I had it off for the last 2 days to see if that was better for them.
Tank size is a little more than a half gallon, with 10 shrimp in it!

u/Cloudie13 — 11 days ago