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parrot fish starting to turn black

ok..i have had my parrot for about a month and then now hes starting to have these black streaks on his fins and spots on his nose...he seriously looks like hes been rolling around in dirt. why is he changin colors like that? is it a bad thing? and why arnt my other parrots and convicts doing it?

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Check water and make sure it is clean also sign of stress or maybe spawning. Read other articles. Very common when water needs changing.

Just make sure your water quality is good. Sometimes if a parrot is a little stressed they will get black streaks or spots, or many times it is part of the color change process. I have one parrot that was changing color and the black would come and go for a while and now it is totally gone and doesn't come back anymore.

Like stated above, the water quality could be an issue. 1 of my parrots, Butters, will get a single black dot on the end of his dorsal fin if my water peramiters change. Once I adjust back to normal, Butters goes back to normal also. My other fish don't change...it's only my yellow parrot that does.

As stated by the other comments, the first thing to check is water quality. The black spots that the parrot fish is getting is only known to happen to parrot fish and they call it "Black spot disease". Get your water tested at your LFS and complete some back to back water changes of about 10% tank capacity. See how that goes and if you see no improvement, try a cycle of Melafix which cured the blackspot disease on my parrots within a week. Hope this helps.

Although they are considered to be herbivores, parrot fish eat a wide variety of organisms, that live on coral reefs. Some species, for example Bolbometopon muricatum may include corals web hosting (polyps) in their diet.Their feeding activity is important for the production and distribution of coral sands in the reef biome and can prevent algae from choking coral. The teeth grow continuously, making it hard to curb overgrowth in the aquarium. Ingested during feeding, coral rock is ground up by the pharyngeal teeth dedicated hosting. After they digest this it is excreted as sand thus at times creating small islands and the idyllic sandy beaches of the Bahamas and Caribbean. One parrot fish can chew coral into 90 kg of sand each year.In most species, the juveniles have a different color pattern than the adults and some tropical species this juvenile coloration can be altered temporarily to mimic the appearance of other species. As the juveniles mature they enter what is termed the initial phase coloration during which they may change color and gender. For most species, initial phase fish are usually males that have the beginnings of the adult male coloration. However, initial phase fishes may include generally mature females domain name registration. The many varieties of color the parrot fish has presented to us are all part of the many phases the parrot fish goes through.