911 - Dojo Finrot...?

[Coolysd]

Okay y'all I am freaking out. A few days ago I posted some pics of one of my Dojo's tail. It was super red and had a little bump on it. The tail looks much better now, however at the very end of her tail at the top it looks a little frayed. She is still eating and she's moving around but at a much slower pace .
I started to do the weekly 25% wc and saw this weird color on a couple of the decors so I pulled them. Also, I went to grab one of my buckets and there is a rusty color of something and it looks like it's eating thru it. I don't have a clue what it is.

I've got 3 platys that's been in my 5gal quarantine tank for about a week. They seem to be fine. I'm thinking I need to swap their tank with the Dojo.
This is all within the last 30 minutes or so and I am at a loss and losing mind!

Any help would be greatly appreciated. I have attached some pics. I'll try to get a better one of her tail later. I gotta finish this wc.

Edit.. here is a better picture of her tail.

 

[Sgooosh]

Okay y'all I am freaking out. A few days ago I posted some pics of one of my Dojo's tail. It was super red and had a little bump on it. The tail looks much better now, however at the very end of her tail at the top it looks a little frayed. She is still eating and she's moving around but at a much slower pace .
I started to do the weekly 25% wc and saw this weird color on a couple of the decors so I pulled them. Also, I went to grab one of my buckets and there is a rusty color of something and it looks like it's eating thru it. I don't have a clue what it is.

I've got 3 platys that's been in my 5gal quarantine tank for about a week. They seem to be fine. I'm thinking I need to swap their tank with the Dojo.
This is all within the last 30 minutes or so and I am at a loss and losing mind!

Any help would be greatly appreciated. I have attached some pics. I'll try to get a better one of her tail later. I gotta finish this wc.

Edit.. here is a better picture of her tail.

not sure since the photo is blurry but i think she has fin rot
the brown spots are probably just diatoms and you can scrub them off easily

what is the bowl thing in the first picture?

 

[Coolysd]

not sure since the photo is blurry but i think she has fin rot
the brown spots are probably just diatoms and you can scrub them off easily

what is the bowl thing in the first picture?

It's just a bowl that I use (for fish only) if I need to put something in it during maintenance. It was in one of my big buckets. So is it okay to still use them? Also, should I go ahead and put her in the 5gal and put the platys in the 75gal? They have only been quarantined for a week.
I have a few better pics attached below.

 

[Coolysd]

brown spots are probably just diatoms

What are diatoms?

 

[Coolysd]

Never mind y'all. A friend of mine has a hospital tank so he took her and is gonna give her the care she needs.

 

[Sgooosh]

What are diatoms?

the brown stuff on your decorations. it is also called brown algae, and it appears usually in newly set up tanks but not always

 

[Coolysd]

Thank you!!