What is the biggest fish I could keep in a 200L tank?

[Mod123]

planning on getting a 200L tank, was thinking a murray cod but they would be better suited for a pond. what is something good to get, preferably nice looking, large, and also easy to care for. Thanks

 

[Harry Singh]

Get an Arowana and platinum gar

 

[Mod123]

Get an Arowana and platinum gar

Don't gars get like 8ft long? Also both of these are invasive and illigal sadly

 

[abominus]

Get an Arowana and platinum gar

Arowana can grow up to 4 feet long while platinum gars can easily hit 4 to 6 feet aswell making it impossible for them to fit in a 200 L tank. It COULD be used as aa TEMPORARY growout but other than that it would be inhumane to keep them in such a small tank permanently. Most aquarists fail to provide a larger home thus that small tank becomes a permanent prison for those poor fish, causing a plethora of problems due which they die much sooner than their average lifespan. They both require thousands of gallons of water to live healthy life when around the 3 to 4 feet mark. So these two, along with other monster fish like RTC, TSN, pacu, etc are definitely not one of your options. Even oscars, green terror, and texas cichlids which only grow up to a 1 to 1.5 foot long can't be kept in a 52 gallon(200 l)
tank.
i would recommend getting a blood parrot or a pair of convict cichlids .Jewel cichlids also have some nice colouration. A pair of discus fish can also be kept but they are sensitive fish and require a more higher level of care.

 

[Mod123]

Arowana can grow up to 4 feet long while platinum gars can easily hit 4 to 6 feet aswell making it impossible for them to fit in a 200 L tank. It COULD be used as aa TEMPORARY growout but other than that it would be inhumane to keep them in such a small tank permanently. Most aquarists fail to provide a larger home thus that small tank becomes a permanent prison for those poor fish, causing a plethora of problems due which they die much sooner than their average lifespan. They both require thousands of gallons of water to live healthy life when around the 3 to 4 feet mark. So these two, along with other monster fish like RTC, TSN, pacu, etc are definitely not one of your options. Even oscars, green terror, and texas cichlids which only grow up to a 1 to 1.5 foot long can't be kept in a 52 gallon(200 l)
tank.
i would recommend getting a blood parrot or a pair of convict cichlids .Jewel cichlids also have some nice colouration. A pair of discus fish can also be kept but they are sensitive fish and require a more higher level of care.

what about a murray cod (temporaliy) as they are native and will not reck the ecosystem if released

 

[abominus]

what about a murray cod (temporaliy) as they are native and will not reck the ecosystem if released

You can keep a small juvenile in there for a few months before it gets too big. But you will have to make sure that the water remains pristine and the fish is comfortable living in its temporary home

 

[Mod123]

You can keep a small juvenile in there for a few months before it gets too big. But you will have to make sure that the water remains pristine and the fish is comfortable living in its temporary home

I will have a filter but shouldn't need a heater right? is sand a good substrate and also i am planning to install a pond which can be it's permanent home. I will make sure to have lots of wood and plants

 

[abominus]

I will have a filter but shouldn't need a heater right? is sand a good substrate and also i am planning to install a pond which can be it's permanent home. I will make sure to have lots of wood and plants

Depends on where you live. Murray cods can tolerate low water temps but prefer 22 to 25 degree celsius. So if your water temp is dropping below 20 degree celsius then i would recommend putting in a heater just to be on the safe side. Also morray cods tend to grow faster in warmer water. good luck with setting up that pond. Its really fun to keep large predatory fish in the right amount of space and environment. As for the substrate sand should be fine.

 

[abominus]

I will have a filter but shouldn't need a heater right? is sand a good substrate and also i am planning to install a pond which can be it's permanent home. I will make sure to have lots of wood and plants

Depends on where you live. Murray cods can tolerate low water temps but prefer 22 to 25 degree celsius. So if your water temp is dropping below 20 degree celsius then i would recommend putting in a heater just to be on the safe side. Also morray cods tend to grow faster in warmer water. good luck with setting up that pond. Its really fun to keep large predatory fish in the right amount of space and environment. As for the substrate sand should be fine.

 

[Mod123]

Depends on where you live. Murray cods can tolerate low water temps but prefer 22 to 25 degree celsius. So if your water temp is dropping below 20 degree celsius then i would recommend putting in a heater just to be on the safe side. Also morray cods tend to grow faster in warmer water. good luck with setting up that pond. Its really fun to keep large predatory fish in the right amount of space and environment. As for the substrate sand should be fine.

I'm thinking of buying a 600L rectangle pond and making it look nice with some pavers and such. I will probably feed him goldfish. As for the heater the average temp in winter inside is 7c so I will need one