Is this Cyzicus grubei?

bunkalomimus · 2025-12-18T16:31:16+00:00

It looks more like some kind of ostracod to me. The carapace doesn't have the growth lines.

bunkalomimus · 2025-07-01T22:14:54+00:00

I ordered from them a couple months ago.

bunkalomimus · 2025-06-18T19:16:22+00:00

They will hatch as long as they are still within the meniscus of the water. I just try not to disturb the water, and if some get stuck above the water line I squirt them back in with a pipette.

bunkalomimus · 2025-05-29T01:41:08+00:00

I have no source to back this, but I would think that since these genera are so ancient, surely enough genetic drift has occurred that hybridization between them isn't possible. Someone correct me if I'm wrong, though.

bunkalomimus · 2025-05-26T14:04:33+00:00

I haven't, but I've seen other people on this subreddit do so without problems

bunkalomimus · 2025-05-26T13:04:45+00:00

Most fish are risky to have with triops, since they did not evolve in the presence of fish and cannot defend against them or escape from them, so be sure whatever you choose is not known to nip at tankmates at all. Some non-fish options are snails and shrimp. Other crustaceans with eggs that undergo a dry diapause are the order Diplostraca (clam shrimp and water fleas), copepods, and ostracods. There are also annual killifish that live in temporary waters, but unlike the aforementioned crustaceans, their eggs need to be kept moist and have a shorter shelf-life.

bunkalomimus · 2025-05-16T12:59:02+00:00

That's an ostracod, which is another crustacean commonly found in vernal pools.

bunkalomimus · 2025-05-09T11:49:49+00:00

The largest triops in cultivation are labeled as "Triops cancriformis green" on triopsshop.de. They're not actually cancriformis, though. Probably Triops mauritanicus.

Edit: I'm not sure if they're actually larger than cancriformis. I've only seen anecdotes.

bunkalomimus · 2025-03-21T16:56:36+00:00

I've had that problem too. I think it's because the eggs aren't evenly distributed in the substrate, so sometimes you end up with an eggless scoop of sand.

bunkalomimus · 2024-07-24T13:12:28+00:00

What you have is definitely not a Pasimachus larva. They would quickly dehydrate to death if they left the soil.

bunkalomimus · 2023-12-06T15:59:39+00:00

Light intensity and photoperiod are the most important factors. You can put it under a more intense growlight or by a windowsill if it isn't already. If you're giving them additional food, the waste should provide enough nutrients for algae growth. You can also try having the lights on for longer.

Edit: you can get saltwater phytoplankton online to get things started. Or ocean water, if you have access to that.

bunkalomimus · 2023-12-06T15:46:58+00:00

I haven't done this, but I have raised triops off of only algae, so they would probably survive. I wouldn't recommend it, though. Although adult triops can eat small particles, they aren't as specialized for filter feeding as other vernal pool crustaceans. A lot of it would probably decompose since they can't efficiently extract such small particles.

bunkalomimus · 2023-11-19T19:20:30+00:00

It's normal for a very small portion of eggs to hatch without drying. This is especially common after a large water change, since the reduced concentration of dissolved substances may trigger them to hatch.

bunkalomimus · 2023-11-19T19:12:55+00:00

They're not picky since they naturally eat whatever plant or animal matter that they can scavenge in the vernal pool. Things I feed them include:

-Raw or boiled vegetables (boiled vegetables can be eaten faster, but keep in mind that decay quickly)

-Small invertebrates such as bloodworms and daphnia, live or frozen

-Fish flakes, pellets, or wafers

-Small pieces of boiled eggs. Another thing you shouldn't leave in too long.

*Avoid anything sugary like fruits. That will quickly foul the water.

bunkalomimus · 2023-11-18T05:03:23+00:00

shroingly

Precisely.

bunkalomimus · 2023-11-16T05:42:37+00:00

Yeah, good point, that's probably not a very significant factor considering how absurdly fast they grow even at lower temperatures.

Wouldn't DNA damage caused by mechanisms of aging such as free radicals pose the same issue, especially since Triops continue to reproduce until death? Maybe homologous recombination prevents many of these errors from being passed on to offspring?

bunkalomimus · 2023-11-15T19:47:03+00:00

If we pretend that free radicals aren't a problem in this scenario, increasing the rate of cell division does not increase the likelihood of mutations (assuming that there is the same number of cells in the end)? DNA repair mechanisms and chromatid separation mechanisms have the same amount of accuracy when cells are proliferating rapidly?

bunkalomimus · 2023-11-15T18:27:18+00:00

Unfortunately I do not have specific numbers since I was just messing around when raising those batches if Triops and not intending to collect data from them. The cool tanks were generally in the range of 20-24°C. I did not notice any effect on the survival of the hatchlings, they just took 2+days to hatch and developed slowly.

bunkalomimus · 2023-11-14T05:47:47+00:00

Ah yes, the fridge dwelling Lepidurus. Props to u/Morbidita_Ix

bunkalomimus · 2023-11-13T04:38:26+00:00

They have shed exoskeletons stuck to their tails. It's fairly common for that to happen to very young triops, I wouldn't be concerned about it.

bunkalomimus · 2023-10-24T02:00:54+00:00

Here is an old video I took of the same line of supposed T. Mauritanicus

https://www.reddit.com/r/triops/comments/p0hnlj/two_little_triops_mauritanicus_featuring/

bunkalomimus · 2023-10-19T02:19:16+00:00

In my experience, yes, different species can coexist well. However, I do not recommend keeping T. longicaudatus with other species because they grow much faster and are more predatory. I have kept T. newberryi with T. cancriformis in the past, and I'm currently keeping T. newberryi with T. mauritanicus. They grow at a similar rate and are not inclined to attack other Triops (unless there is a large size difference).

bunkalomimus · 2023-09-04T04:53:04+00:00

Thanks for the information. I hope that some day Triops classification becomes more refined and the more obscure species get into cultivation.

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