I dont know whats wrong

[Amazon]

Hey guys, havent posted in a while but I have a problem in my native stream tank. It started with a banded darter, his color got much darker (actually prettier) and the area between the head and the dorsal fin became skinnier than usual. He acted perfectly fine, he was eating very well, and he just seemed fine. But a few days ago he just died. I also just had a pretty little johnny darter die from the same reason. I have no idea what it is . Ive been extremely careful with trying not to introduce aquarium diseases into the native tank. I now have another johnny darter that is now dark in color and rather skinny in the area I told yall. I need suggestions soon as im afraid im going to lose my other little johnny.:help: :help:

[Little Embers]

I'm not sure either sorry! Are all the water parameters where they should be and is the temperature cool enough for them? Are they getting enough nutrition?

You may have already seen this info: [Only Registered Users Can See Links.]

[Northernguy]

Did your fish have anything on them? Lifted scales?
Are you keeping up with water changes?
Did your tank start going bad after a water change?

[Amazon]

New update, could be the problem.


Ive been noticing these wierd worms attached to the nozzle of the powerhead and never thought much bout them till now. They are small and brown and they have a longish body with four or five things stcking out of one end of them. Just like anchor worms :ssuprised: . About a week ago I also noticed this wierd bug attached to the side of the banded darter that died. It came off after a little while and I just forgot about it after that. My friend also has them on his filter nozzle in his hteranda formosa tank. The wierd thing is my darter tank and his H. formosa tank both have this moss we took from the river in them.
Could this be the problem?
Could they have come from the plant?
Thanks in advance guys I just asked the question on NANFA as I am a member of it to

[Northernguy]

That could very well be it.Did you qt them first.
Anything out of the wild should never go straight into your tank.
If your on town water and they have been altering their system and you do a water change.It could have disasterous results.

[Amazon]

I slapped myself for this but they werent qt'ed, I used gravel and sand straight out of the river though.
Anyways, what meds should I use to kill the anchor worms that are safe for scaleless catfishes.

[Northernguy]

:tappingfoot: Qt Tanks Are a neccesity when you get stuff like that but you already know that!.I'm not sure but do a water change.
I would scrub everything but the media for your filter under tap water.You can soak it in dechlorinated water to get rid of the tap chlorine before you add it back to the tank.
Get rid of as much as can of it before treating with meds.

[Amazon]

After doing more research im thinking these are hydra:scry: :scry:
Now im back in the same position as before.

[PostalPenguin]

Hmm. Heres what I would do:

Set up a barebottomed QT tank and put all the fish in there.

Take filter media and transfer it to QT tank. Scrub/soak filter housing and all other easily removable objects with 10% bleach solution.

Drain tank and refill with tap water, not treated. The chlorine in the water will likely kill all the hydras. Continue to drain and refill with tap water for a few days. Make sure to do gravel vacs to suck up any hydra spores. Then transfer the fish back, treating the water first of course.

Another option: Fenbendazole. Its commonly found in dog de-wormers, one in particular Safe Guard. You can find more info about using it here: [Only Registered Users Can See Links.]