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Ancient Fish

Discussion of Ancient fish such as Arowanas, Gars, Lungfish, Polypterus, Knives, etc.

We are currently upgrading MFK. thanks! -neo

Arowanas New

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Official arowana showcase Thread (Post with Photos)

Friday at 10:06 AM
lingi

Gars & Bowfins New

: 5.8K

: 79.7K

Threads: 5.8K

Messages: 79.7K

Any small bowfins out there available?

Wednesday at 2:18 PM
benzjamin13

Knifefish and Lungfish New

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Threads: 5.6K

Messages: 64.4K

AUL and friends

Today at 5:14 PM
danotaylor

Polypterus New

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: 236K

Threads: 14.5K

Messages: 236K

Polypterus congicus Growth Rate (The Giant Bichir)/Any Other Polypterus congicus Growth Stories?

May 30, 2026
Racersk

Filters

Is my eel okay ? First time keeper of this species

Replies: 7

Views: 287

Feb 25, 2026

tlindsey

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MFK MarketPlace

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FREE Advanced Acrylics Tank
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MFK Marketplace : Buy and Sell
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For Sale Albino Pleco
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For Sale Clown loach
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FREE Elliot’s cichlid - free - Cincinnati
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For Sale Beani
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For Sale $1800 7x3x2 fish tank only
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MFK Marketplace : Buy and Sell
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For Sale L97 Pleco
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MFK Marketplace : Buy and Sell

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Looking for catfish opinions
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Vieja id please
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Rethinking standard practice: 8 years, no testing, no disease.
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