Looks like I have a lot to learn about different species! My fave (also at the moment) is the Tandanus Catfish. Wouldn't be fair to keep in a four foot, would need a six-eight foot I reckon as they would grow to about a foot in a tank, even then I'm not sure. Have seen a couple of them in a three foot, and with a face like theirs, I couldn't tell if they were smiling or not...in the meantime I'm absolutely loving my common bristlenose pair. And my dwarf gouramis, and...
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