Hi Brenda,
I moved your thread into a new post so more people may notice.
Thanks, Shari! You folks certainly did! thanks for all the responses!
Looking over posts in a lot of the forums, several of you have referred to rivertanks or brooktanks. What exactly do you mean by that? Since the kuhlis are stream fish, should I try something like that?
Mark in Vancouver said:
I would not keep them in less than a 30 gallon tank, not litres. They need room, and they are highly social with their own kind. They will swim into the water column at times.
How many can you keep in a tank of that size? I have my four in the 55 gallon at present with a fair number of other fish, and was going to add a fifth one. It may be that it would be better to move some of the livebearers to the 20L if I get it and transform the big tank for the kuhlis. BTB, the reason I seemed fixated on that size is that I currently have a 20/10 gal. stand with a 10 gallon on it and was thinking that it would be nice to put a 20 gal. on top. It won't hold a bigger tank. Must not frighten the hubby, who is a little dismayed that all these tanks seem to be popping up everywhere, though he bought me the 55 for Christmas several years ago and the 29 the year after that.
They need room, and they are highly social with their own kind. They will swim into the water column at times.
If you have a powerhead? Do they like the current? Mine pretty much stay close to the bottom, though occasionally they twine in the mid regions of my plastic plants, scrounging for crumbs. It's been about two weeks since I bought the black kuhlis, and for whatever reason about four days ago, everybody suddenly decided to start coming out. I've seen all four of them at once several times, and there's usually at least one out now almost all the time. They don't seem to care about species-the bigger of the black ones and the striped one tend to hang out together and the smaller black and striped ones do the same.
P. myersi spend a lot of time combing around for food bits and P. anguillaris burrow frequently.
Are there pictures of the different ones here on the site somewhere, or can you point me to some someplace else? Because I got my striped ones in two different places and the striped patterns are different enough that I'm thinking I might have two different species. I haven't seen any of them burrow yet. I've got a pretty fine quartz gravel in the tank, a size one I think they said it was. There was a size zero that was finer, but even that was coarser than the really fine marine sand. I'm wondering if the gravel I currently have is too heavy for them to burrow in and if I shouldn't use the fine marine sand instead. Needless to say, I'm talking about the dry marine sand and not the live stuff.
If playground sand would work for them, I could use that. I just need to know how it needs to be washed, etc..
Awesome Coolstein said:
You may not see them much, but Kuhli paradise might not be the same as Kuhli veiwing parradise
I'll admit to tackiness here. I have a ten-year-old son who likes the fish as well, particularly the kuhlis, and bought a plastic castle ruin for the 55 gal. tank as a decoration. It's not neon or anything, it's grey and green and brown, but it's certainly not a natural brook feature... I got it before I got the kuhlis. It stands up on pillars of pseudo rock so there's an open area underneath it, and it's hollow, with a good-sized opening up into the interior on the underside. We call it the Kuhli Club, because that's where they all lair up. When I had just the one, he stayed in there for weeks on end, and I'd reach in from time to time and try to shake him out, just to make sure he wasn't dead! I was walking by yesterday and was startled to see a little barbeled head poking up through one of the holes drilled in it for air bubbles in one of the towers.

If I set up a new tank, I'll do it more tastefully with rocks and such, but they do like the foundered ruins of Numenor very well.
Mark in Vancouver said:
For kuhlis, grass-like plants, large flat bits of wood, and even leaves might be preferable. They certainly like mucking about where they feel safe.
mike v said:
PVC tubes are almost always ignored when there is something better around. Semi-closed areas under driftwood are particularly liked.
I'll keep this in mind. I have some little grass-like plastic plants and they enjoy twining through them. The black kuhlis were in a tank at the store that had a large flat rock in it. I didn't see any when I was walking the tanks, then when I asked the girl, she showed me the tank with the kuhli tag on it and lifted a rock to reveal a seething mass of about twenty of them! Some of them seem to have been able to burrow in that very coarse gravel, but mine haven't since I got them home. I can get presoaked driftwood at the snooty LFS store, but it's pricey. I might stick with just stacked smooth rocks.