pet

New Pets: Opae Ula Shrimp and Malaysian Trumpet Snails

I’ve had my gargoyle gecko Ashlar for six years now as my only pet, though I also keep hundreds of houseplants as well.

An opae ula shrimp swimming next to a Malaysian trumpet snail in my new tank.

Recently I decided to branch out into keeping what are colloquially called “Hawaiian volcano shrimp” or “opae ula,” Halocaridina rubra. These shrimp are special because they are extremely adaptable, long-lived (lifespan is over twenty years!), and have a very small biological footprint which requires minimal care (no filtration, no water changes beyond topping up to combat evaporation, no heaters, no airstones, rarely providing supplemental food beyond what naturally develops in the tank). The one curveball to their care is that they live in brackish waters, and can handle a variety of salinities but prefer about 1.010. Brackish water is a bit limitation in terms of what other species of fauna and flora you can keep alongside them; most aquatic plants are either freshwater or saltwater and will “melt” in brackish conditions. There are just a couple forms of macro algae that keepers have identified that are safe. In terms of other fauna, the most recommended tankmates are Malaysian trumpet snails, sometimes called MTS for short: Melanoides tuberculata. These snails are typically a freshwater species but they can adapt to brackish conditions and are considered good tankmates for the shrimp as they are also detritivores, but they do more to turn over the substrate and clean the glass compared to the shrimp.

I made this three gallon jar aquarium using aragonite sand, coral I gathered from a Japanese beach, and basalt and lava rocks I gathered from Iceland. I added a Venus comb murex shell I purchased online, as I wanted some fine lines in the tank but have read that the commonly used “sea fan” gorgonian skeletons will break down over time and pollute the tank so I chose a safer route.

I then stocked the tank with a tiny brackish marimo (a form of macro algae) as well as a brackish Chaetomorpha macro algae, eight Malasian trumpet snails, and approximately thirteen opae ula shrimp. I say approximately because they were impossible to count with complete confidence - they came with the Chaetomorpha algae ball I bought from the same seller and were darting in and around it.

Here are some photos from the first couple days! This is the cleanest it will likely ever look, as it will begin to grow the biofilm and algae that will serve as the primary diet for the shrimp and snails.

Speaking Of Ashlar...!

I always provide Ash with a water bowl in addition to misting. I know she drinks from the misted droplets and the water in her food rather than standing water, but I like providing her with a spot to soak if she wishes. She somewhat regularly drags coconut fiber bedding into the dish, and that’s her prerogative!

Recently, though, I saw her sitting protectively atop the wet coir in the dish one evening - a behavior I’ve not witnessed before - and I thought I spotted a bit of white that looked suspicious. I took a photo and then the next morning when she’d moved off to sleep, I investigated! Sure enough, I unearthed an egg. I’m not sure if it’s her first egg or not, but it’s the first I’ve spotted from her! She created her own lay site and ensured the right humidity - what a clever gecko she is.

Since Ash has been a solitary gecko since around eight months old, she is very likely laying infertile eggs. There is an ever so small - microscopically tiny! - chance that she could successfully undergo parthenogenesis, but I’m not holding my breath. However, this is a maturity milestone! I left the egg in the dish as she might want to circle back and eat it to reclaim some of the nutrients.

Ashlar Update!

I haven’t updated you on Ashlar - my pet gargoyle gecko - in a while, but she’s doing very well! Ash is a little over three years old, has a strong preference for the Fig & Insects Pangea Gecko Diet, changes color regularly, and makes full use of her vivarium. Here are a few new photos of her!

Ashlar the Adorable

I haven’t updated you on my pet gargoyle gecko Ashlar in a while - she’s doing very well, and has even redecorated her cage recently by moving the vine supports around!

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Ashlar and a Blooming Sinningia Cardinalis

Here are a couple recent photos from fauna and flora in my life!

Ash Channeling Cork Bark and Napping

Here’re a couple shots of my gargoyle gecko Ashlar hanging out inside of cork bark. The second photo is post-misting, and you can see that she’s scooted down and compressed a little to avoid directly being spritzed. The third picture shows how extremely variable in color she can be - in this image she’s what’s referred to as “fired down” while in the other two images she’s relatively “fired up,” though she can get even darker! She also has several in-between options to offer, too.

My New Pet: Ashlar, or Ash for Short

When my crested gecko Lex passed away this winter, I was immediately surprised by how much lonelier my house felt. It was genuinely surprising how much companionship I felt from Lex’s presence. I didn’t want to replace her, exactly, but I wanted another pet. I like a wide range of pets including cats and dogs, but I feel my current household situation is best suited for a low maintenance and quiet pet that won’t be heartbroken when I travel for artist residencies.

In the intervening years since I got Lex, I had gradually become interested in a similar species of gecko called a gargoyle gecko that’s native to the same island as crested geckos (New Calendonia). The two species are similar in a lot of ways - size, diet, temperature needs, space needs, etc. - but differ in a few key ways. Gargoyle geckos will regrow their tails if they autotomize (meaning intentionally sever their tails) whereas crested geckos won’t. The two species also have different coloration and head shape and detailing. Gargoyles are so named because they have little bumps that develop on their heads and have sharp teeth.

I decided to get a gargoyle gecko for my next pet. They are more difficult to find than crested geckos, but fortunately for me there were a few for sale from a home breeder in nearby Lawrence, KS, on Craigslist. I consulted with the seller and then arranged to pick up my new pet a few days later.

I picked up the new little one and learned that it had hatched on July 28th. You can’t determine the sex (unless you’re really skilled and have a magnification device called a loupe) until the gecko is a lot older, so I’m currently changing the pronouns back and forth at random. After I’d had him for a few days, I decided the name Ashlar was suitable - ashlar is the most finely dressed masonry, but as a name also can be shortened to Ash which also represents the tree and cinder; all three are very apropos of various color states of my new gecko. I bought Ash a new cage just in case Lex’s had a parasite or fungal infestation (though I doubt that it does, and also heavily sanitized and temperature-treated the old cage through freezing just to be totally sure) and new cage decor and plants as well.

All that being said, please meet Ash! While I know it might be hard to believe, all of the photos in the below slideshow are of just one adorable gecko who is very variable in color depending on mood, surroundings, and time of day.