are you unintentionally experimenting with invasive species fish???

[Magnum Man]

kind of a funny take off my Minnesota ban threat yesterday...

most all my tanks are set up "regionally" the fish in each tank are from the same area of the world... there are some exceptions, and those would be "invasive species"... I do have a few plecos in tanks from other parts of the world, where they wouldn't naturally be found, some I just can't catch out, without a major redo on the tank, and a few I just said the heck with it, and added them anyway... but out of a dozen tanks, I have very few that have fish not from the area...

almost makes me want to try a tank, with a fish or two, from every continent, but that just seems weird to me...

 

[OMG_FL]

Most of fishkeepers do keep fish from few areas around the world in the same tank mostly for the looks sometimes just because they can lol

I myself don't really think much about that even though most of my tanks are single species tanks

I don't see a problem with keeping fish that naturally lives in similar habitats and water parameters
And if you match their colours and behaviour you'll get a really interesting and unique tank
I'd say go for it
Give any updates if you do that

 

[Back in the fold]

It’s been a very long time since I’ve had anything other than species only aquariums but now I have Guppies and Platy’s together . They seem to get along .

 

[gwand]

It’s been a very long time since I’ve had anything other than species only aquariums but now I have Guppies and Platy’s together . They seem to get along .

I have a peaceful tank with endlers, platys and Mollys.

 

[emeraldking]

Well, I used to keep mosquito fish (both Gambusia affinis and Gambusia holbrooki). Because it's considered being an invasive species in Western Europe, they're not allowed anymore. Despite of this restriction, I've still kept them for a time period. But at some point I donated them to a greenhouse.
Other Gambusia species are allowed.

 

[MaloK]

I always was more more worried on the water parameters and fish comportment compatibility than where they came from...

I'm a jelly fish and my neighbors are all the varieties you could find around, We all go to the same place and are able work around... Even if a couple crabs passes you in line or a whale bumps you out...

As long as compatible... the jelly fish is still able to do it's thing.

 

[GaryE]

I generally go geographic. That doesn't mean a Congolese fish can't be in the same tank as an Angolan one, even though the distances between habitats are considerable. I have 2 South American communities - a 40 and a 120. One tank has my 'leftover' old fish from past projects, and it has a combo of rainbows and an SA Cichlid. I have 2 types of platys in their own tanks, with Corys. That ain't geographic.

Everything else is African, from the western half.

Potential invasives? Not with my winters. Nothing here could live past October, and most would die outdoors by September.

 

[WhistlingBadger]

My tanks tend toward regional, biotopish setups too, and other than using closely related species for fish I can't get my hands on (a few species from Myanmar in my Himalayan tank, for example), I stick pretty closely to what's really there. I'm thinking about putting a gourami in my Inle tank, even though they aren't native. Several kinds have been introduced there, though, and since it's a heavily human-influenced environment, I'm OK with it.

 

[TwoTankAmin]

I have done a number of species tanks but some of my my planted communities have been more like the United Nations of fish.

Redline barb and bn pleco.