Is this a worm or parasite?

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treehstn

Aquarium Advice Newbie
Joined
Mar 28, 2015
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2
This is how one of my fish looked this morning. On its left side it has had a red spot for several months but it's always looked the same. I had a plecostamus in the tank that was killing my fish so I gave it away. I assumed that the red spot was just an injury from the plecostamus. Now it looks like a big worm or something on the right side! Any ideas what this is?

1~What type of fish is afflicted? In addition, please describe what is wrong with the fish to the best of your ability (i.e. cotton like growth, bloated, etc.).

Australian Rainbow Fish

2~What are your tank parameters (ammonia, nitrites, nitrates, temp, pH)? Please give exact values.

Don't know

3~ How large is the tank? How long has the tank been set up?

30 gals. Several years

4~What type of filtration are you using? Please give the name and number (i.e. Fluval 304) and amount of gph if known.

Marineland Penguin Power Filter, 20 to 30-Gallon, 150 GPH

5~How many fish are in the tank? What kinds of fish are they and what are their current sizes?

Only 2 fish. About 3 1/2" long each.

6~When is the last time you did a water change and vacuum the gravel? How often do you do this? How much water do you remove at a time?

30% water change and vacuum gravel about once a month.

7~How long have you had the fish? If the fish is new, how did you acclimate it/them?

Several years.

8~Have you added anything new to the tank--decor, new dechlorinator, new substrate, etc.?

Nothing new.

9~What kind of food have you been feeding your fish, have you changed their diet recently?

Tropical flakes and frozen bloodworms

Here's a link to the video. I couldn't get it to add the video with the button below.


Thanks!
 
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