Mystery disease wiping out my tank

[hurrumph]

I've been having issues with my fish and it seems really contagious, 4 to 5 fish dead per day.
I've lost multiple cardinal tetras, neon tetras, pygmy cories, panda loaches, celestial pearl danio and even otos.
In each instant, it appears that part of the fish's flesh turns white.
Am noticing white growth on pygmy cory tails as well (not white spots as it comes in patches). One of them has most of it's tail rotted off.

Attaching a few photos as reference, hopefully someone here can help me!

https://www.flickr.com/photos/hurrum...7647253139692/

Thanks!
KC

[hurrumph]

Nope. All small fish.
I've been running this tank for almost a year. Happened in the last 2 weeks after I introduced a few panda loaches.

[stormhawk]

Probably an infestation of Costia, a flagellate parasite. This is a difficult parasite to get rid off, provided that is, they are infected with Costia and not something else.

Read this link for a list of available medications that should work against this parasite:
http://www.theaquariumwiki.com/Costiasis

Take note, you might be looking at some heavy losses over the next few days, because Costia is a devastating parasite. White spot aka ich is nothing compared to this flagellate. Always quarantine new additions before adding to an existing setup, or risk having a massive infection go through the tank's inhabitants.

[hurrumph]

Yep, heavy losses.
I've been losing an average of 4 fishes a day. Have already stopped the chiller as well.
Wondering if there's a need to decomm and disinfect my entire tank now.

[limz_777]

Nope. All small fish.
I've been running this tank for almost a year. Happened in the last 2 weeks after I introduced a few panda loaches.

the host disease comes from the panda loaches ?

[hurrumph]

It looks like that because the panda loaches were the first to go.
Bought 2 panda loaches from same store and the two new ones died.

This was followed by my other loaches and then all the other fish.
Today was an especially bad day - 9 so far.

[Kohei]

Maybe you can try isolate each of them and medicate them ? meanwhile drain the whole tank ? sorry for your loss

[hurrumph]

Update on the disease, I took out most of my plants and pushed the temperature to 30 degrees.
Number of fish dying has reduced but then again, it could be because I have lesser fish now.