Parasites in my fish tank. (observed with microscope)

[zirho6]

Problem

1. Please explain the problems with your fish. When did you notice the problems and did anything unusual happen that you think started them?

2 weeks ago, I noticed one of adult discus Scratching, rubbing and flashing.

2. Symptoms (i.e. turning dark, excess slime, not eating, clamped fins, flashing, darting, clamped gills, white/yellow/green poop, hiding, headstanding or tailstanding, white on tips of fins, rotting or fungus, blisters/white zits on fish, bloated, cloudy eyes, wounds).

flashing

3. What medications/ treatments have you already tried and what were the results. Include dosage and duration of treatment.

I did, 1 week and half treatment of General cure and E M erythromycin. 2 times between 4 days period



4. Tank size and ages, numbers and sizes of fish.

it's 2 months old fish tank. 13 juvenile (3 inches) & 2 adult discus (5 inches)
80G fish tank with sump. actuall volumn was 90 G


5. Water change regime (What percentage and how often).

50 % every other day.

6. How long has tank been running? Is it bare bottom? If you have substrate, what type and how deep is it?

2 months and half by today. it's BB. Acrylic tank, 15 inches deep.

7. Do you age your water? If you do for how long and what is the ph swing.

I don't age water. PH is constant like 7.8 from the tap.

8. Parameters and water source;

Note: Water Parameters are important in diagnosing problems within a tank. If you don't own test kits for the following information, you can purchase them, test your parameters and post this info as soon as possible.


- temp _____ 82F

- ph _____ 7.8

- ammonia reading ____0

- nitrite reading ____0

- nitrate reading ____20

What type of water or combinations of water sources do you use? If it is an RO/tap/well water mix, please list percentages in the mix.

- tap water with 3 stage filters (2 carbon, segment). with Kordon Pond Amquel Plus conditioner.

- municipal water ____

- RO water ____


9. Any new fish, plants or inverts added recently.

I bought juvies a month and half ago, 2 adults 3 weeks ago.


10. Please tell us what you feed your fish and how often. This can be critical information for solving the problem so be as specific as you can.

Beefheart mix that I made and flake food.

11. Include any pictures or videos you have which shows the symptoms. If you can't add them to this post, please provide a link to them.


https://goo.gl/photos/16uMy1nFgCyUwCgD6

Does anyone know what this parasite is?

So I took some footage here. I think there are 3 different kinds are happening. Not 100% sure tho.


I have 2 different tanks and I put all fish in one 80Gal fish tank. 100% water change every other day.

I think it's the same one in this video as well.
https://www.youtube.com/watch?v=-Gnc...youtu.be&t=685

I have all kinds of meds on my hands but I wanted to make sure what is what so I can properly treat them.

Thank you all!

[nc0gnet0]

There are thousands of little critters in any freshwater aquarium. Most are harmless.

[zirho6]

Hi Mud, Thanks for the reply.

You are right. Let me double check they are the ONEs harmless.

What about this?

https://goo.gl/photos/8DmhGgAMvHDwXB9M7

They don't show any symptom of parasite infection. But I'm treating PraziPro right now.
I'm planning for the treatment for 1 month at the moment.

Should I stop it and see if any of them showing more obvious symptoms?


Thank you so much!

[nc0gnet0]

Hi Mud, Thanks for the reply.

You are right. Let me double check they are the ONEs harmless.

What about this?

https://goo.gl/photos/8DmhGgAMvHDwXB9M7

They don't show any symptom of parasite infection. But I'm treating PraziPro right now.
I'm planning for the treatment for 1 month at the moment.

Should I stop it and see if any of them showing more obvious symptoms?


Thank you so much!

Looks like a ditritrus worm to me, harmless.