Choosing the best tank for a single species biotope

[eleNt]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

[graye]

Larger tanks tend to make biotope setup easier, so a 20-gallon tank should work well for a single-species setup. This simplifies the decision-making process, and it ultimately comes down to personal preference - what fish species do you have a liking for? Once you've made that choice, you can build around it. I must emphasize that personal taste plays a significant role here, and what I might choose might differ significantly from your selection.

One tetra species from the Pantanal region that I find intriguing is the black neon, Hyphessobrycon herbertaxelrodi. While some people might consider them unremarkable, I think they're quite fascinating. Given some time to research, I'm confident I could find numerous other fish species from that region that I'd be interested in keeping.

It's likely that if you were to ask 20 different aquarists for their opinions, you'd receive 20 different yet valid responses.

[Aquafan]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

You're likely looking for tetras, I'd guess. For an Araguaia River biotope, consider the penguin tetra (thayeria boehlkei) or the Ember tetra (Hyphessobrycon amandae) - both pretty cool and available options.

[eleNt]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

You're likely looking for tetras, I'd guess. For an Araguaia River biotope, consider the penguin tetra (thayeria boehlkei) or the Ember tetra (Hyphessobrycon amandae) - both pretty cool and available options.

Still weighing my options.

[Aquafan]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

You could try a small species of Apisto - they're pretty cool and can thrive in smaller tanks like a 15 or 20 gallon setup.

[eleNt]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

You're likely looking for tetras, I'd guess. For an Araguaia River biotope, consider the penguin tetra (thayeria boehlkei) or the Ember tetra (Hyphessobrycon amandae) - both pretty cool and available options.

I'm considering a small Amazon River biotope with tetras in a 20 gallon tank.

[Aquafan]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

Honestly, if you're getting a 20 gallon tank, I'd suggest moving your existing tetras there instead of introducing new species.

[eleNt]

For a South American single-species biotope, I'd recommend a 20-gallon tank over a 15-gallon one, just for some extra space. Considering the biotopes you mentioned - Pantanal River, Araguaia River, and Amazon River - I think a well-planted tank with some open swimming space would work well.

For the Amazon River biotope, you could consider fish like angelfish, dwarf cichlids, or maybe some species of catfish. As for plants, you could go with some Amazonian species like Anacharis, Cabomba, or even some Java moss.

The Pantanal River biotope would be quite similar, but you might want to add some plants that can thrive in slightly softer water. For fish, you could consider species like the dwarf pike or some smaller catfish.

The Araguaia River biotope would be more similar to the Amazon River one, so you could use similar fish and plants.

You're likely looking for tetras, I'd guess. For an Araguaia River biotope, consider the penguin tetra (thayeria boehlkei) or the Ember tetra (Hyphessobrycon amandae) - both pretty cool and available options.

I'm still deciding. The cardinal tetras are set for the Juwel Lido 200, so they're taken care of. The silvertips will stay in the 10 gallon for now - I need some time to figure out their future. A Sao Francisco River biotope could be an option for them, but I'm not sure yet.

[graye]

Take care of what you already have, it's great to think about biotopes, but priorities first.

[eleNt]

Larger tanks tend to make biotope setup easier, so a 20-gallon tank should work well for a single-species setup. This simplifies the decision-making process, and it ultimately comes down to personal preference - what fish species do you have a liking for? Once you've made that choice, you can build around it. I must emphasize that personal taste plays a significant role here, and what I might choose might differ significantly from your selection.

One tetra species from the Pantanal region that I find intriguing is the black neon, Hyphessobrycon herbertaxelrodi. While some people might consider them unremarkable, I think they're quite fascinating. Given some time to research, I'm confident I could find numerous other fish species from that region that I'd be interested in keeping.

It's likely that if you were to ask 20 different aquarists for their opinions, you'd receive 20 different yet valid responses.

I need to rehome my cardinal tetras, they're currently with my silvertips in the 10 gallon. A bigger tank is on the horizon for them. Have you found other Pantanal River fish to recommend?