| Pachon Cave in northeastern Mexico supports a population of blind Mexican tetras isolated from base-level populations by elevation. |
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| The freshwater mollies and tetras are rather ferocious and may take chunks out of your skin like miniature piranhas. |
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| We have a freshwater fish tank community of tetras, catfish, gouramis and loaches. |
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| Like many tetras, the glowlight tetra is a schooling fish and prefers to swim in the company of at least seven of its peers. |
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| He's lived happily for the past four months with a platy and two neon tetras in a five gallon aquarium. |
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| Rosy and rummy-nosed tetras and uaru cichlids swam en masse. |
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| On a recent visit, my friend I and were seated in the back corner, next to a large aquarium whose only occupants seemed to be a pair of tetras and some dazed-looking goldfish. |
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| I had a mixed community aquarium with several tetras, two mollies, some corydoras catfish, and a platy from a previous tank. |
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| Keeping more than one Betta in a fish tank should be avoided, but Bettas can actually be in the same tank with other nonaggressive fish such as neon tetras and guppies. |
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