33 gallon long stocking suggestions

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Feeder Fish
Aug 23, 2025
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USA
Hi, I’m going to set up a 33 gallon long (48x13x13 inch) aquarium and would like some suggestions for either a single fish or pair of fish. I don't like small community fish so I will not be adding any to the tank. I would prefer if the fish are at least 4 inches when fully grown and are compatible with plants. I'm in the US so no dwarf snakeheads unfortunately 😞
Pairs I've thought about:

Wild betta antuta or patoti
Gold three-spot gourami

I like how a red tail shark looks, but I think it might be too active for a 33 gallon long? I've also read that a red wolf fish and snakeskin gourami can be kept in a 48x12x12 inch aquarium, but an 8+ inch fish seems a little excessive for a tank that size, but i'm no expert.

Feedback on the fish i've mentioned and other suggestions would be greatly appreciated.

Thanks
 
To me a 33 gal tank,os onnly enough space for fish that don't exceed 3 inches.
For me one or a pair of the wild type bettas would be perfect.
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Or a pair of the larger killifish such as gularis
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A small Asian cichlid I find interesting is Etropus canarensus, that did well in a 48¨tank.
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Last edited:
Hi, I’m going to set up a 33 gallon long (48x13x13 inch) aquarium and would like some suggestions for either a single fish or pair of fish. I don't like small community fish so I will not be adding any to the tank. I would prefer if the fish are at least 4 inches when fully grown and are compatible with plants. I'm in the US so no dwarf snakeheads unfortunately 😞
Pairs I've thought about:

Wild betta antuta or patoti
Gold three-spot gourami

I like how a red tail shark looks, but I think it might be too active for a 33 gallon long? I've also read that a red wolf fish and snakeskin gourami can be kept in a 48x12x12 inch aquarium, but an 8+ inch fish seems a little excessive for a tank that size, but i'm no expert.

Feedback on the fish i've mentioned and other suggestions would be greatly appreciated.

Thanks

+2 for the Wild Betta choice...

Others you could consider:
  • Ivanacara bimaculata (Nationwide Aquatics, Shoreline Aquatics)
  • Any Apistogramma (Wet Spot, Aquatic Clarity sell pairs)
  • Most Laetacara (L. dorsigera are nice and Aquatic Clarity may still have wilds)
  • Cleithracara maronii (Wet Spot)
  • Maybe a compatible pair of Amatitlania nanolutea (Wet Spot)
 
Thank you both for the feedback and suggestions. I’ll probably be going with a pair of wild bettas then, but I’ll have to decide which type. Thankfully there’s a lfs in town that specializes in bettas and routinely gets wild bettas so they’ll be easy to get. I’ll probably go with whatever they have available first, but we’ll see.
 
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Thank you both for the feedback and suggestions. I’ll probably be going with a pair of wild bettas then, but I’ll have to decide which type. Thankfully there’s a lfs in town that specializes in bettas and routinely gets wild bettas so they’ll be easy to get. I’ll probably go with whatever they have available first, but we’ll see.
Be sure to post pictures when you’re done. I’ve always loved the 33g long footprint.
 
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