Can comet and guppies live together?
No, it is best not to keep guppies and goldfish in the same aquarium. They prefer different temperatures, goldfish will grow large enough to eat guppies and guppies are known fin nippers and might damage the fins of your goldfish.
How do I stop my fish from biting my fins?
What to Do for Fin Nipping Fish
- Removing the Fin-nipper. Remove the offender immediately before it does further damage to the rest of its tank mates.
 - Rehoming the Offending Fish. House the fin nipper in a separate tank or find a new owner if you are unable to give it a tank of its own.
 - Treating the Victims.
 - Prevention.
 
How do you know if guppies are happy?
Healthy guppies should have smooth scales with no bumps or protrusions, and their fins should be whole. Cysts, sores and torn fins are common symptoms of disease in freshwater fish like guppies.
Is it okay for fish to be in pitch black?
Keeping fish in the dark will lower their immune system, making them prone to diseases and generally weakening them. With insufficient light, fish like goldfish can loose their colors.
Why did my guppies eyes turn black?
Summary: Tiny fish called Trinidadian guppies turn their eyes black to warn other fish when they are feeling aggressive, new research shows. Tiny fish called Trinidadian guppies turn their eyes black to warn other fish when they are feeling aggressive, new research shows.
How long do black Moors live?
20 years
Why is my fish’s eye black?
Are black eyes an indication that your goldfish is visually impaired? This phenomenon is just a colouration of the eye surround and does not affect the sight of the fish. It is also worth mentioning that a goldfish’s eyes are a good indication of its health and water quality.
Can a fish eye grow back?
Unlike what is possible with the human eye, fish are able to regenerate injuries to the retina at the cellular level. They focus on the retina of fish, since — unlike humans — fish are able to completely regenerate all retinal nerve cells upon injury. Special glia cells take on the function of stem cells.