Least Kilifish Any Info
- Thread starter TigerMan
- Start date
tidytourniquet
Fish Fanatic
If you dont even know what it looks like then why are you thinking about getting it?
LEAST KILLIFISH (HETERANDRIA FORMOSA) - Pygmy Livebearer
Is not really a killifish, as killifish are known as egglaying toothcarps but they are closely related being a livebearing toothcarp. You shouldn't have too much trouble getting some stock as they are fairly common. If you are having difficulty...look to see if there is a livebearer society either locally or nationally and you will surely find a member who is keeping these little beauties.
http
/www.millevolte.com/nativefish15.html
Is not really a killifish, as killifish are known as egglaying toothcarps but they are closely related being a livebearing toothcarp. You shouldn't have too much trouble getting some stock as they are fairly common. If you are having difficulty...look to see if there is a livebearer society either locally or nationally and you will surely find a member who is keeping these little beauties.
http
/www.millevolte.com/nativefish15.html
IovaykInD
Fish Herder
Not to hijack your thread, but this is about killifish. Are they compatible with guppies and neon tetras? If not, are there certain species that do? I'm going to a large warehouse this Sunday and might get a killifish. They look so colorful and cute 
frazoo
Fish Fanatic
Not to hijack your thread, but this is about killifish. Are they compatible with guppies and neon tetras? If not, are there certain species that do? I'm going to a large warehouse this Sunday and might get a killifish. They look so colorful and cute
NO big nono no guppies in with any true killifish they will nip the fins on your cute little guppies until they DIE!
please no other fish in with guppies unless it is a very small alge sucker fish thing or you are told by someone that you can put a certain type of fish in there with them.
*if you are going to feed some fuppies to other fish please use mosquitofish and send me the guppies*
Just wanted to add...if you look at ordering them, or see them at your LFS, make sure they are actually Heterandria Formosa. Gambusia Affinis is also sometimes sold under the name 'Mosquitofish' or 'Western Mosquitofish' and they are aggressive little things! So I'd make sure you get Heterandria Formosa. 
Unless you are looking a species tank, but still...if it's your first time with them, I'd go for the nicer ones. I'd suggest you really read up on them too. Here's some links to get you started:
http/www.aquahobby.com/gallery/e_Heterandria_formosa.php
http/www3.sympatico.ca/ps.mcfarlane/formosa.htm
And here's some pictures of Heterandria Formosa vs. Gambusia Affinis
just so you can tell the difference should you see one labeled 'Mosquitofish'.
Unless you are looking a species tank, but still...if it's your first time with them, I'd go for the nicer ones. I'd suggest you really read up on them too. Here's some links to get you started:http
/www.aquahobby.com/gallery/e_Heterandria_formosa.phphttp
/www3.sympatico.ca/ps.mcfarlane/formosa.htmAnd here's some pictures of Heterandria Formosa vs. Gambusia Affinis
just so you can tell the difference should you see one labeled 'Mosquitofish'.
dwarfgourami
Fish Connoisseur
"please no other fish in with guppies unless it is a very small alge sucker fish thing or you are told by someone that you can put a certain type of fish in there with them."
Perhaps slightly exaggerated this, though you do have a good point, that guppies need to be kept apart from any fin-nippers or potentially aggressive fish. This still leaves plenty of fish that guppies get on well with: other livebearers (particularly platys), corydoras, probably brochis too (though I've never kept them), khuulie loaches, non-nippy small tetras and rasboras...
Perhaps slightly exaggerated this, though you do have a good point, that guppies need to be kept apart from any fin-nippers or potentially aggressive fish. This still leaves plenty of fish that guppies get on well with: other livebearers (particularly platys), corydoras, probably brochis too (though I've never kept them), khuulie loaches, non-nippy small tetras and rasboras...
Bloo
~ I learn something new ~ ~~~~ every day ~~~~
Sorry, again not to hijack this thread, but I have Endlers and killifish (Aphyosemion australe) together and they get along really well 
I've never seen anyone try to nip anyone at all.
I've never seen anyone try to nip anyone at all.
IovaykInD
Fish Herder
Well endlers don't really have long flowing fins that are a target for fin nippers. They might not be attacked because the killifish don't think the endlers look like killis.
Hello Tigerman.
I have a bunch of Least Killifish and I'm enjoying them a great deal. They're a trip. I actually didn't buy them. My sister works for a water testing laboratory and Peanut (that's our first Least Killifish) was brought in inside a half-cup size water sample... on ice. Needless to say, they are an incredibly hearty fish and breed at the drop of a dime. Peanut was less than a centimeter long when she was brought into the lab and about eight weeks later she grew a centimeter and had babies in one of my home tank. Lots of babies. I've gotten ten Least Killie babies so far and I don't think Peanut is done delivering yet. The babies are so small I can't really tell what gender they are, which means I might end up with many, many more Least Killie. I've heard that the females are identified by a spot on their anal fin, but its hard to see a miniscule spot on a tiny fish. Fortunately, if I end up with too many little peanuts I can just release them down here, since they're native to Florida. From Alabama, to South Carolina, to over in Louisinana, they are everywhere there is fresh or brackish moving water. But I will keep Peanut. Once she's done delivering I will put her in with my Marble Mollies. I've already tested her in the tank for a few hours with them and a male Betta and they all got along fine. Here's a picture of Least Killifish I've pulled off of Google Image. These look most like my Peanut.
Hope this helps.
Yours
lwells
I have a bunch of Least Killifish and I'm enjoying them a great deal. They're a trip. I actually didn't buy them. My sister works for a water testing laboratory and Peanut (that's our first Least Killifish) was brought in inside a half-cup size water sample... on ice. Needless to say, they are an incredibly hearty fish and breed at the drop of a dime. Peanut was less than a centimeter long when she was brought into the lab and about eight weeks later she grew a centimeter and had babies in one of my home tank. Lots of babies. I've gotten ten Least Killie babies so far and I don't think Peanut is done delivering yet. The babies are so small I can't really tell what gender they are, which means I might end up with many, many more Least Killie. I've heard that the females are identified by a spot on their anal fin, but its hard to see a miniscule spot on a tiny fish. Fortunately, if I end up with too many little peanuts I can just release them down here, since they're native to Florida. From Alabama, to South Carolina, to over in Louisinana, they are everywhere there is fresh or brackish moving water. But I will keep Peanut. Once she's done delivering I will put her in with my Marble Mollies. I've already tested her in the tank for a few hours with them and a male Betta and they all got along fine. Here's a picture of Least Killifish I've pulled off of Google Image. These look most like my Peanut.
Hope this helps.
Yours
lwells
Attachments
Welcome to the site Irwells. We usually don't bother answering 3 year old threads. I agree that the Heterandria formosa are a very nice hearty fish. I also have a tank full of them.
One of my own males
and one of my own females
For perspective, this one is with a pygmy corydoras
The idea that you can release your Heterandria is a very wrong one. Once a fish is in one of your tanks, it should never be put back. Our environments are very artificial but we also experience diseases in our tanks that the native fish have no resistance to. That means that releasing even a native fish after it has been in your tank is a very bad mistake and should never even be considered. It could bring about a devastating disease outbreak in the native population. Even worse would be any you have that were not from the same original location but one nearby. Fish develop variations within a species that are location specific. By releasing one from a creek into another nearby creek, you could easily remove differences that have developed over centuries. If you must get rid of your Heterandria, give them away to fellow hobbyists or sell them over the internet or even give or sell them to a pet shop.
One of my own males
and one of my own females
For perspective, this one is with a pygmy corydoras
The idea that you can release your Heterandria is a very wrong one. Once a fish is in one of your tanks, it should never be put back. Our environments are very artificial but we also experience diseases in our tanks that the native fish have no resistance to. That means that releasing even a native fish after it has been in your tank is a very bad mistake and should never even be considered. It could bring about a devastating disease outbreak in the native population. Even worse would be any you have that were not from the same original location but one nearby. Fish develop variations within a species that are location specific. By releasing one from a creek into another nearby creek, you could easily remove differences that have developed over centuries. If you must get rid of your Heterandria, give them away to fellow hobbyists or sell them over the internet or even give or sell them to a pet shop.
Amerce
Fish Herder
Love the fish, I thought it was a pygmy cory at first glance. Never seen them in the UK but I'll be keeping my out for some now
helterskelter
Livebearer Specilest
Amerce we got them in the UK but dont see them all to often.
The best place is at BLA auctions in Corby and Nottingham or perhaps the charity fish auction in redditch will usually sell for £5-8 a pair
The best place is at BLA auctions in Corby and Nottingham or perhaps the charity fish auction in redditch will usually sell for £5-8 a pair
I can admit that I started with an empty looking bag that I brought home from a fish auction. I never did see any fish in a 10 gallon for the first week or more but kept feeding as if there were fry present. By the third week, I could actually see a few and by 2 months I had breeding going on. Mine came from Mike Matthews, who I trusted not to be selling an empty bag at auction but what I got were very young fry. My wife still kids me about the tank full of No-See-Ums that I fed invisible microworms to. I actually think the gut loaded microworms helped me get them big enough to see more quickly.
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