threadfin rainbows fins turning black? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 06-24-2020, 11:26 PM Thread Starter
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threadfin rainbows fins turning black?

I noticed some of my threadfin rainbows' fins are turning black on the anal fin. Is this normal and should I be worried? They are all eating, active, and seem completely normal.

Myron
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post #2 of 3 (permalink) Old 06-25-2020, 12:43 AM
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If you mean like this yes itís normal and will get more intense with age.

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post #3 of 3 (permalink) Old 06-29-2020, 12:06 AM
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That's completely normal. Threadfins are one of my favorites. I always keep five or more.

Tommy

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Eheim Pimp #204.
58 gal planted Oceanic
Japonica shrimp, assorted Blue Eyed Rainbows, Tetras, Hatchets, Danios, Rasboras,
Celestial Pearl Danio (Celestichthys margaritatus) & Emerald Dwarf Rasbora (Microrasbora erythromicron)
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