Red marks on base of fins and along dorsal fin

[kaleideon]

Hi,
I have a marbled fenestratus (mutation species) who is 1.5yr old.

I just noticed today that his fins are very red at the base where they connect to his body. I am not sure if this is out of the ordinary or not, I would have thought I would have noticed it before if it were normal. It looks painful, and I've included some pics (it can't be seen that well from the photos but hopefully this conveys what I'm talking about - in real life it is more pronounced than can be seen from the pictures).

While taking these pics I also noticed he has some streaks of red at the top of his body just under the dorsal fin, which can be seen in one of them. Again, I'm not sure if this is normal or not.

Would appreciate it if anyone could shed some light on this situation or if it has been seen before. Could it be 'red pest' ?

My water parameters are: nitrate, ammonia, nitrite all zero; pH 6.2.

Thank you for any help.

 

[FishingOut]

Very nice looking fish.
I see you tested and have no ammonia but it sounds like an ammonia issue to me.
Dont think its red pest. Do you have any older pictures of the fish to campare the fins to?

 

[alexmuw]

I would expect some nitrate in your water. Keep an eye on your fish. If it gets worse, start septicemia treatment (septicemia will eventually spread all over yoru fishes body, pretty obvious to identify).

My fish had septicemia (red pest), and I used Parasite Clear. I was able to save a few, but many died (you can try antibiotics, but most people still lose their fish while spending $100+).

Good luck and keep us updated!

 

[kaleideon]

Thanks to both of you for the responses. I did a big water change and added some salt and the redness seems to have subsided a little bit. I think it must be a water quality issue as you said. I will keep up the water changes and keep an eye on it over the next few days.

Thanks again.