Cleanup Crew Considerations for Heterometrus spinifer

Joined
Dec 15, 2023
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So. It has finally happened. After nearly 11 months of maintaining a functioning vivarium, I finally acquired a lovely Heterometrus spinifer (see images attached), per my intent nearly a year ago. She hides all day, eats about once every two weeks, and appears generally responsive and happy given nocturnal observations up to this point. The enclosure (see images attached) is 20 gallons, features a variety of plant life, includes a water dish, two cork bark hides, a temperature gradient, and a variety of hardscape features. She prefers the cork hide on the left, which is the cooler of the two, given the heatpad's location on the right side (along the wall, not the bottom, obviously) of the tank.

Two springtail colonies were added to each side of the enclosure over the course of the last several months, both with successful propogation. However, since adding the AFS, I have attempted to mitigate the humiditidy to the recommended 75-85%. Prior, it was always at 99%, which kept the moss and sprintails happy, but I suspect is a bit much for the larger arthropod. A few weeks ago I was still seeing the springtails near the water dish, on the odd bit of charcoal, or crawling amongst the mosses. But no longer...

So I've returned to the isopod consideration as a cleanup crew, as they seem altogether more resilient. But the three colonies I currently manage (Dairy Cow, Zebra, and Giant Canyon) all feature abundant juvenile populations (still tiny and pale), which makes me worry about them bothering the scorp, were I too add them. I'm fairly certain she is finished molting, given her dimensions, but I'm not confident and am hesitant to risk the little guys feeding on her when she's all soft, vulnerable, and probably embarassed by her relative nudity.

Anyway, this thread will likely result in the same series of recommendations for/against as I've seen in other posts, but I thought I would solicit a little feedback and discussion nonetheless.

Many thanks, in advance, for your thoughts!






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A guy

Arachnodemon
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I have dairy cows with my centipedes and they work quite well. They even eat together lol
 
Joined
Dec 15, 2023
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I have dairy cows with my centipedes and they work quite well. They even eat together lol
It's funny you mention that. I actually threw a few centipedes in with each isopod colony a couple of months ago with an eye toward mitigating the juvenile population (I heard somewhere the centipedes will eat the isopods), but all that's happened is that the centipedes got fat and the isopods kept making more isopods. I've had to get over the fairly successful populations, but I wanted to work toward a more stable, balanced system, and avoiding any population collapses. Although I've never seen the two species eat together!
 

Wolfram1

Arachnoprince
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Jul 1, 2018
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1,628
Its literally impossible for the springtails to have died -out in that enclosure while the plants are still alive and thriving.

likely they just moved below the leaf litter or into the soil and other places you can't see them at.
They will pop back up sooner or later.

You can add isopods, just be aware that scorpions like tarantulas are fragile during a molt and some isopods can be quite protein driven.
 

A guy

Arachnodemon
Active Member
Joined
Aug 8, 2020
Messages
680
It's funny you mention that. I actually threw a few centipedes in with each isopod colony a couple of months ago with an eye toward mitigating the juvenile population (I heard somewhere the centipedes will eat the isopods), but all that's happened is that the centipedes got fat and the isopods kept making more isopods. I've had to get over the fairly successful populations, but I wanted to work toward a more stable, balanced system, and avoiding any population collapses. Although I've never seen the two species eat together!
I have my Scolopendra dehaani for a long time now with my dairy cow isopods. The isopods love hanging around with the centipede.

The best thing I've seen them do and I have seen this in a few occasions - the dehaani wandering around its enclosure and one or two isopods literally riding it lol
 
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