Torrey Posted January 8, 2022 Share Posted January 8, 2022 It would make sense for guppies to need light on 2 fronts: Like @Guppysnail said above, to promote lots of swimming activity so those muscles keep the fish [and spine] active, strong, and straight. Second reason that I could see would be due to a generalization that may have missed the science: UVA & UVB light is a necessary part of making vit D3, which is needed to best utilize calcium. I am not saying that this is the case in fish, as I have not read any peer-reviewed research on the issue... for fish. We absolutely know that vit K2 is necessary for humans to generate and utilze D3, which is a necessary component for calcium absorption and utilization for healthy bones. So from a logic standpoint, if people noticed guppies grown in outdoor tubs with strong, partial sun never develop crooked/malformed spines, yet didn't understand the UV/D3/ calcium component, it would be logical to make the assumption livebearers need strong light. Does not make the statement true, necessarily. I absolutely know low calcium levels in the water will lead to deformed spines in livebearers. Again, I don't have any peer-reviewed research to validate either piece of logic. It may not have been tested yet, don't know 🤷♂️ 1 Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now