Glofish Danios- Curved Spines?

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Talbott37

Aquarium Advice Apprentice
Joined
Apr 4, 2013
Messages
12
Location
Nashville, TN
Hi- I've noticed that almost all of my glofish danios are developing curvature in their spines. I've had three of them for about 10 months, and two for about 3 months. The two newest danios are the latest additions to the tank, no other new fish.
They live in a 12 gallon fluval edge tank, with 2 glo-tetras, a bristle nose pleco, and a few cherry shrimp. They eat Omega One flakes once daily, and have approx 30% water changes once weekly. Water parameters have all been safe and stable. They are exhibiting no signs of illness or distress in any way. Should I be concerned about the spine curvature? Is there anything I should be watching for?
Thanks for any input...
 
Ime danios develop this as they age especially females. To be honest Im not sure if its normal but I've seen it a lot. In fact i have a few that are 2+ years old that have very hunched backs.
 
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