Hi Im really in need of help
If you like you can cut straight down to 'The problems'
below is basically the last few weeks, just incase it helps in any way with diagnosis.
I Have a little Red Cap Oranda S/he is just over 2 inches in size, and have owened her since Oct 30th of this year.
Since owning her shes seemed a bit lethargic which was odd as she was happy and active in the tank at the Aquarium shop I got her from.
Did lots of water tests and all came back fine. and she seems perfectly healthy on the outside.
When i would stick my hand in the water and would come swimming over and weave through my fingers and seems perfectly happy. So I decided to get her a little friend.
When I was younger I had a Blackmore, and thought it would be nice to own one again, did a bit of research and thought it would be fine to have the two together.
At first they were great together, the Blackmore made the red cap way more active and they have happily been swimming around together.
'The Problems' Begin.
The Begining of the week - I noticed a small patch of Red on her tail. i did some googerling and decided it must be Amonia Poisioning. tested the water, and it came back fine in every way.
But it was Monday which is when I normally do my 25% water change.
Wednesday - I noticed the red had begun to spread Slightly, and becoming slightly Lethargic again.
Thursday - I noticed three little white spots on her. I had experienced Ich with my tropical tank last year and still had the medicine in the cobard.
checked the exspire date (still fine) and read all the info again, thought about it for a little while, then put in the desired amount.
Friday- Sat in the corner by the filter. not swimming over when I went over to the tank like she normally does. (Blackmore still happy, following me around the room, and still eating)
Sat- Put in the medicine again (it says to put in every 48 hours)
Sun- All still the same (still sat not doing anything, not eating) Did water check, all still fine in the tank except the Nitrate is higher then normal, just gone into the danger zone according to my test.
Monday- Got up today to frind her floating at the top of the tank

when I went over she started to move, and has been struggerling for the last Half hour (since I found her) to go down, she can manage it, but it takes a lot of effort, and she keeps loosing balance.
Did my Monday water change and everything still the same but the Nirate from the day before went down slightly, but still to high for my liking.
took some water to a local brand pet shop (the aquarium shop is shut on mondays) who tested the water, they showed me their results and everything came back fine, but the chap said my
GH was slightly high
this made me even more confused

Help!
1) Is the red on her Tail Amonia poisoning? how do i get rid of this? Ive read you can buy something?
The tank was set up about 2 months before I got the red cap.
The filter was new but I used the sponge from my trop tank, as it was well matured. -should i not use trop sponge in a goldfish tank?!
The tank is over 23 gallons so should be alright for two small goldfish right? at least for now.
2) Why is she floating? am I two late?
Ive read when fish float to feed them peas and such, but shes not eating at all, just turns from me, (she used to eat from my fingers)
3) I just read the Ich article on this forum and found it very useful. i am going to start turning the heat up and adding aquarium salt.
but
if she has got amonia poisoning will this effect her? should i do water changes or add anything to treat this as well?
Any Help would be much appriciated as im so worried about her