I am thinking of moving my killiefish to my community aquarium will she kill any of the fish?


the fish are as stated;

5- 5 banded barbs
4- zebra danios
4- white cloud mtn. minnows
1- black platty
1 female guppie/endler cross sold as a feeder. It's a 40 gallon.

the killifish will surely at least try to attack at least one of them. probably whichever is the slowest.

I'd say that considering the tank size, it'd be fine, but.. i doubt the killi would like such a huge tank

5 killies + 10gal. tank = Killifish paradise


1 killifish + tank-mates + 40 gallon tank = Killie should do fine, but would be tempted to hunt the other fishies.


It might be safe depending on your killies personality.

I say, try it for a little bit but keep the other tank running, if it doesn't work, EX] the killie is less enthusiastic about life and just sits there, or.. something gets eatened. I'd put the killie back

Honestly, this is a question that's hard to answer, only way to be sure is to try.. unless the killi means a lot to you, redeeming the term, if it ain't broke, don't fix it.

well, all my fish mean alot to me, and don't feel like putting sonme in potential harm, i was thinking maybe put her in the net breeder i have sitting around for about 3 hours, and, watching her to see if she tries to attack any that come close to the fabric.


I think she would be a little happier in this tank seeing as i have alot more plants in there, and, there is absolutly no way she can commite sucide. so, we'll see.


are the killiefish usually species tank type of fish?

thank you for posting youth, your the first one on 3 different fourms to post LOL.

There is no species of fish that does not do well with an increased tank volume, any one that says otherwise needs to re-evaluate their advise. Just because a fish can live in a smaller volume does not mean they should have to. Case in point some of the healthiest Betta splendens I have seen were living in a 75 gallon community tank.

As for worrying about the Killie trying to eat the others, that is a significant concern as most any fish will try to eat another fish if it is small enough. I think the breeder net is a good idea, but I would not count on it as the Killie might well behave different with free swimmers than those in a cage. It may be better to set up a split tank as a test and just good attention. If you can screen off half of the tank and put each on a different side. Fluorescent lighting diffuser<egg crate> might do well for this.

i don't think any of the fish in there will fit into her mouth, the exception would be my female guppie, which would be going into the ten gallon, where the killie is housed right now.


It's just that she is alone ATM, and, i don't know if i want to get more killie fish untill i can get more space for them (a 20 gallon, with actualy a lot of plants where they can have more of a habbitat, unlike the 10 gallon i have now, onlt have java fern, and incadecent bulbs, i need to redo the hole aquarium really.....


what will i be using for a tank devider, could i use screen, or, should i go to a LFS and buy an actual divider? (I am kinda broke right now)

A screen should work, preferably not metal but that could work for the short term.

ok, thanks.

Some of my bettas have hated larger tanks than smallerones, but usually that's because the size of tank & enviorment changed. Stressed them out.


Your killi would do fine w/ the larger tank, it's just you never know how much stress she will take in from the dramatic tank size & enviorment change.



I really need to work on my speaking skills. Alot of things I say seem to come out wrong.

They will adjust as the benefits far out way the negatives. Water quality is easier to maintain and the chemistry is far more stable.

Another option for dividing the tank is you could use a pannel from a UGF held in place with rocks or somthing.

lol, i trashed all my UGF a LONG time ago. and, the bad thing is, i just set up my 40 gallon with a 3 level rock planter, and, the poor little killi will have even less space to swim (It's a 5"Widex11"Highx maybe 2' deep.)