Anyone here keep least killifish? Not exactly monster fish, but they seem interesting. A lfs has a bunch mixed in with the feeder guppies. Any tips for care/feeding? I'm thinking about buying a bunch and putting them in a 5 gal tank.
least killifish
- Thread starter spotfin
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Their a fun fish for a small comunity tank and the males are usually very colorful. They're surface dwellers that like to keep the top to themselves. I had some marble hatchets and then added the killifish and now I just have killifish. The males are territorial and unless your tank is over 60 gallons I wouldn't recommend keeping more than one male with a couple of females. Or you overstock them like you see in some lfs and they don't have room to establish set territories. If you just have one or 2 males with 3 or 4 females they're not terribly difficult to breed. I recommend them 
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I'm not sure why this species is so commonly referred to as a 'killifish'. It is a livebearer in the same family as the guppy (Poeciliidae). According to Wikipedia
An interesting fish, nevertheless
Their a fun fish for a small comunity tank and the males are usually very colorful. They're surface dwellers that like to keep the top to themselves. I had some marble hatchets and then added the killifish and now I just have killifish. The males are territorial and unless your tank is over 60 gallons I wouldn't recommend keeping more than one male with a couple of females. Or you overstock them like you see in some lfs and they don't have room to establish set territories. If you just have one or 2 males with 3 or 4 females they're not terribly difficult to breed. I recommend them
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How big are yours? The ones I saw in the store are small; the bigger ones were probably 1/2"- 3/4" long. Most were smaller. Not sure my eyes are good enough to distinguish males and females.
Small but interesting. This is the first time I've ever seen them.
My largest is almost 2 inches but I don't think they get much bigger than that. Its a smalll fish ideal for a small communit tank. I feed mine flake and they gobble em up. They also enjoy freeze dried blood worm or small insects like tiny crickets. Their mouths are pretty big for their size and I feed my african butterfly fish crickts and the killis went after them too
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No actually that tank actually crashed last week cuz both of my hob filters quit on me without my notice and I developed a fungal problem in my gravel. I lost 6 roseline sharks 7 small clown loaches two zebra loaches and all but one of my killifish. (My large male actually) so I'm in the process of tearing it down and starting over.
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Very cool fish for a small tank. I would agree that 1 male and 4 or 5 females would be a great starter in a 5 gal tank. If you have enough plant cover you could try 2 males. The sex differences are pretty obvious when you take a closer look at them. The males are much smaller than the females and have more color and a gonopodium. Every summer when the water hyacinth start to grow back I put a few in my outdoor 300 gal with much bigger fish and they hide out all summer in the roots. They don't drop their fry like guppies, all at once. Instead they drop them over a period of days which seems to make them less suceptible to predation. I keep a few in smaller setups and they do well with crayfish, real killifish like bluefin and golden, small sunfish, etc. I did notice them going after smaller shrimp so be careful of that. Have fun with your new setup.
Oliver
Oliver
