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One of my 5 neon tetras started acting up this morning in my 10 gal... any clue what's wrong? All my other fish are fine, and he seemed fine too yesterday. He's a little skinner than the others but that's the only difference. Marked NSFW cuz it's hard
![by [deleted] from MassiveCock](https://external-preview.redd.it/2Wlxa5TH53wgMTyVKJwZPjlbATDdKRqnIAQP_Gh3nYw.jpg?width=108&crop=smart&auto=webp&s=542f42df819cc25a26500835baaff01ec414f872)
![by [deleted] from EbonyThroatQueens](https://external-preview.redd.it/4Wo_3KoZnkQftFon55qErNgL8diqdYmCPVUHNpQCB0U.png?width=320&crop=smart&format=pjpg&auto=webp&s=ae40ad640624e16e10d0ab77389846b9f4839e7b)