- Do you know of and understand the Aquarium Nitrogen Cycle?
Hello! I am messaging here as a last resort. I have done a ton of research to try to figure out what is wrong with my pleco Mushu! I've had him for over 6 months now, and while he is acting the same, I have noticed weird brown splotches on his underside that weren't there previously. I have attached a picture of what he currently looks like, and was wondering if anyone has any idea what this could be? Asking for a friend thank you!