Microscope pics - please share

[two_wheeled]

Oops! My videos above were broken. I fixed them.

[KoiRun]

Here are some videos from a koi scrape I performed today.
I made two scrapes. One on the left side of the koi, starting at the back of the closed gill plate. Another slide on the right.
Surprisingly, I wasn't able to find much life at all. I found two of these little critters. No time to identify it yet. Let me know if you know what these are.

https://youtu.be/j9p1uiHeYnY

https://youtu.be/Bgr073I2m48

https://youtu.be/ivs8rSxRPOk

Cephalodella! It is a type of rotifer. They are part of you filters. They eat organics, dead bacteria and algae. They not known to be koi parasites.
Also nice microscope/iphone set up. A mechanical stage for your microscope would be a real plus especially in the future when it comes to chasing around faster moving microbes.

A few links on Cephalodella (I've never seen one yet for real).

https://en.wikipedia.org/wiki/Rotifer
https://www.researchgate.net/publica...lla_acidophila
https://www.youtube.com/watch?v=BFjfvSeYD58&t=37s

I forgot, what kind of mechanical and biological filters do you have?

[two_wheeled]

Filtration isn’t really done yet. Thus far I have:
Mechanical - floor buffing pads
Biological - two 55G barrels of k1 and k3

[KoiRun]

I'm getting small amounts of string algae hanging around my skimmer weir lately. It does not appear to branch and it looks to have one chloroplast per cell. ? genus Klebsormidium.

[two_wheeled]

I came across a very interesting publication today.
I was reading about Water Quality in fish ponds and came across some unexpected information about the rotifers I posted pictures of previously.

https://srac.tamu.edu/serveFactSheet/300
Source: https://srac.tamu.edu/viewCategory/25

[Koigarden]

thx. interesting.

[KoiRun]

Lots on activity on the skimmer filter pads...



Litonotus is fierce predator of other microbes. This one is caught in a floc particle sandwiched by the slide cover. It is trying to get out. Usually it is very difficulty to film because they swim so so fast.

[KoiRun]

White fungus attacking koi egg - probably sap (saprolegnia ssp.)

[KoiRun]

Live egg!

This one stuck on a hyacinth root with two other eggs. A lot of other eggs already attacked by fungus (white egg or egg with white fuzz).

[two_wheeled]

That live egg is neat!

[KoiRun]

A friend of mine renovated his pond earlier this year and just recently developed wads and wads of thick string algae. Here is the pic under 100x magnification:
I thinking (guessing) Cladophora glomerata.

[KoiRun]

"Another group observed that freshwater aquarium bio filters are dominated by ammonia-oxidizing archaea than bacteria."
-3:30 on this video.

For those fascinated with what is 'under' the microscope you'll enjoy this channel (subscribe as they come out with a new video every Monday). I always put it in on full screen on my 4K tv when watching. Enjoy!

[two_wheeled]

This has become a new favorite youtube channel. They showed some of the rotifers that I had previously found in my filter media.

https://www.youtube.com/watch?v=io731XY8fH8

[Hope J]

"Another group observed that freshwater aquarium bio filters are dominated by ammonia-oxidizing archaea than bacteria."
-3:30 on this video.

For those fascinated with what is 'under' the microscope you'll enjoy this channel (subscribe as they come out with a new video every Monday). I always put it in on full screen on my 4K tv when watching. Enjoy!

That was awesome!

[two_wheeled]

I found on an underwater video that some of my fish were flashing. I could only manage to catch one of the goldfish so I did a scrape on that one. I couldn’t find ANYTHING under the microscope for a very long time until this guy suddenly popped up. If you know what it is please let me know.

https://youtu.be/9F3vL_skqRc

[KoiRun]

I found on an underwater video that some of my fish were flashing. I could only manage to catch one of the goldfish so I did a scrape on that one. I couldn’t find ANYTHING under the microscope for a very long time until this guy suddenly popped up. If you know what it is please let me know.

https://youtu.be/9F3vL_skqRc

This is a nematode (roundworm); free-living type, bacteria-eating type, non-parasitic type. There are thousands species of nematode. I was looking at some types that are are microscopic (less than 1mm in length) eg. Turbatrix aceti. which fits this morphology. These are nicely sometimes known a vinegar eel or microworm. These are used as 'first feed' for fry are are highly digestible.

I see many of these (depending on season) in my filter sludge and a scrape of the biofilm or surface algae on my pond liner. I believe my koi and goldfish are after these when I see them suck on the pond liner. I believe that the ingestion of microscopic animals such a these is the reason why koi can survive through a prolonged fast.

As for whether that nematode actually came from a scrape of your goldfish, I doubt, because I don't see much mucus cells surrounding it. It could have just come the surrounding water or particulates in the water.

That's another excellent image from your microscope Steve. I you have not already please list the model of your microscope. I also have to look up that cell phone adapter mount that you are using and get one. It's fantastic.

[two_wheeled]

Thanks, I was hand-holding my new iphone this time, as it's too big and heavy to fit into the holder. Doh!
My microscope is a real cheap one. As with anything else, the more I use it the more I'd like a better one. But it does OK for my needs. And I want to stay married.
https://www.koiphen.com/forums/showt...32#post2710732

[KoiRun]

From some of my mates in the UK:

"Trichodina"



Trichodina



Costia 5:30



Costia 1:46