Fish with red marks.

[Aleviltona]

• pH-7.4
• Nitrates-0
• Hardness-5
• Nitrite-0
• Ammonia-0
• KH/Buffer-14
• Water Temperature-71

I got the fish from a coworker who didn’t know what to do with them. They are in a 75 gallon tank that is fully cycled. Used the old filter media for bacterial growth as well. Was setting it up for other fish. They were in a 10 gallon half way filled up so about 5 gallons of water. They are about 6+ inches long. The orange  ones have red marks on there side and the white one has as well. Also the white one has red marks on its eyes. Wanting to know if this bruising or parasite of some kind. Asked local fish store and they didn’t know. Pictures are below. Just want to make sure they have good rest of their lives. Sorry not the best pictures they move a lot. (Also the decorations were just there for the bacteria from the old tank. Setting up indoor pond for them.😁)

[Native Keeper]

I think that's just its coloring mate.

[Colu]

It could be hemorrhagic septicemia an injury that developed a secondary bacterial infections I would recommend doing a course of kanaplex in food and adding  some Indian almond leaves as they have antibacterial and antifungal properties to help speed up the healing process

[Aleviltona]

Ok thank you very much. I will give it a try.😁

[Minanora]

They're lovely. Glad you adopted them! A 75 will do them well. 🙂