BY JESSIE SANDERS, DVM, CERTAQV
Fish respond to the same circadian rhythms as most other life on earth. For outdoor systems, this is easy to utilize for your fish, provided you do not blind them overnight with underwater lights. For the lowest stress environment, mimicking the natural outdoor cycle is best for your fish. If you cannot keep up with the seasonal changes, a standard period of light and dark is recommended.[...]
To view the full story, click here.