I was thinking about getting some of these for my 40 gallon community tank. Would they go well with 6 rummynose tetras, 3 sterbai's, 2 bumblebee catfish, 2 panda catfish, 3 chain loaches? I also have shrimp but don't think that would matter..? I had heard somewhere that they were not the type of fish to put into a community tank, and were mainly raised for breeding. What is everyone's opinion on this?
I've got a number of non-annual killis and keep them all in communities of some kind when adult. Some of these are with other killis but my Epiplatys are in with Apistogrammas and pencilfish. I think the main rule is to not put them in with anything too boisterous IME.
I have kept the Aplocheilus lineatus 'Gold' pisctured above in a more robust community tank and they did really well with Congo Tetras and Pelvicachromis, definitely a good starter killi for mixing with others. I'd recomend the Epiplatys dageti too, gorgeous fish.
In my experience (33 years) keeping killies I find them hardier and easier to raise than anything except wild guppies. Look at aquabid and you can get more eggs in a day than you can in a year of AKA listings.
They're shy and don't breed all at once, instead laying a few eggs every day. These are about the only reasons petshops don't stock them. That and the females are drab brown fish.
Nobody whose into killies gets them from a petshop, module the very occasional rare wild import of something like annulatus. Killifans trade among themselves and are happy to infect others with the bug.
I just got into killies I got a pair of A. bitaeniatum "ijebu ode". They are an easy one, I was told they would be a good starter killi. They breed into a spawning mop and I collect eggs every other day or so. Still waiting for my first eggs to hatch, they have another week or so I think. They are in a 2 gallon tank and love to eat!
These are one of the coolest fish ever. I had a self sustaining colony of them - 6 pairs in a well planted 20. They didn't even need feeding, they lived off the microorganisms on the plants. I had this colony for 2 yeaes and fish would come and go in the tank, it would range between 6 and 8 pairs.
The light failed while I was away on business, and they were all dead within 2 weeks.
It was a nice little balanced ecosystem while it lasted though.
Here's a (bad) pic of them (digitized from an old camcorder in the pre-digicam era and ok they're Lagos not Ijebu-ode, almost the same fish though:
Here's JJ Scheels pictute of them from the cover of "Rivulins of the old World", for a few decades probably the most famous killi picture ever (used with permission of the Scheel family)