i think if im not mistaken it is blood in the sperm of the fish
Some algae in the red tide contains a poison that can kill fish.
That red slime is a common problem in saltwater tanks. It is called 'cyanobacteria' but more people actually just call it red slime remover. Its a bacterial film. It can be removed with a product called Ultralife Red Slime Remover which is available at www.bigalsonline.com
Many fish eat algae, it depends on which type of algae. But the fish that do eat algae are catfish, red tailed fish, Florida flag fish, and plecos.
Red algae contain red pigments called phycoerythrins, which are responsible for their characteristic red color. These pigments help the algae absorb certain wavelengths of light that penetrate deeper in the water column, allowing red algae to thrive in lower light conditions compared to green algae.
Several marine animals eat red algae, including sea urchins, limpets, some species of fish, and certain marine snails. These animals play a role in controlling red algae populations and maintaining balance in marine ecosystems.
If you are referring to the Red Tide, then, it is a form of algae called "Gymnodinium breve". Not everyone agrees on the reason the algae booms, and causes the water to appear red, but it is said to be a natural phenomena and it's not good for the ocean life or people. you shouldn't eat fin fish that are from a red tide area, red tide produces potent neurotoxins.
Small algae eating fish with what appears to have red and silver stripes resembling the flag for which it gets its name.
Fishermen, whoever owns a worm farm and owners of game fish in tanks
The useful effects of algae is that it provides oxygen for various living things. Algae is also a food resource for humans and fish. Algae can become harmful if they produce toxins. Too much algae in the water can kill fish because the algae consumes a great amount of oxygen and can block the sunlight from reaching underwater.
Betta fish turn red due to a genetic trait that causes the production of red pigments in their scales. This trait can be influenced by factors such as diet, water quality, and stress levels.
Algae: Green algae, even red algae but phycoerythrin over populates it which gives the red algae its red color.
the life span of the red algae never ends unless some dumb fish decide to eat it or until JESUS comes back