Angelfish gets red veins! with pics

[flo08]

Hi, 4 days ago I put my fish in a new tank.
I made sure to look at the water quality levels, therefore I am using the old huge external filter, the old water, stones and plants etc.

Everything seems fine except 1 angelfish:
He started to get a red vein (where the fins begin), now he has even more.
Food is accepted without problems- it's just these vains and the fact that he is hiding all the time.

What could it be? Bacteria infection or "just" stress?

Please help!

P.S.: The other fish, including 3 baby angels don't show any of these symptoms

Thanks a lot in advance
http://www.aquaticcommunity.com/aqua...1&d=1226666293
http://www.aquaticcommunity.com/aqua...1&d=1226666366

[teach]

I would guess stress but im not for sure. I would just watch closely.

[Lady Hobbs]

Everything seems fine or is fine? Check your water parmeters and make sure you have no ammonia or nitrites and if you do, do a water change.

[DrNic]

That looks really bad. I've seen similar things when I was breeding angels. That kind of redness usually starts as stress but ends as an infection. Keep and eye on the fish. If it doesn't start to look better in a 2-3 start treating with anti-barcterial meds. Also, keep an eye on the ammonia levels in the tank. Ammonia spikes can also cause this sometimes.

[Northernguy]

Welcome to the AC!
Do you have a test kit?
If not take a sample to the local fish store and have it tested.
it sounds like it high in ammonia.
How long has your tank been set up and running?
Did you cycle first or are you cycling with fish?

[Lady Hobbs]

Red streaks can be a sign of ammonia poisioning. You may have transferred over used filter media but it may not have enough bacteria established on it to keep up with your current stock.

[MrDrums]

You might start by doing a nice water change - maybe once a day for a few days. See if that helps.

[cocoa_pleco]

sounds like septicemia, if it is its a hard disease to treat