Unlabelled Aquatic Koi It's the start of spring here in South Africa, my pond, fish and the warm sunshine just make me so bloody happy!

September 14, 2020
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Aquatic Koi It's the start of spring here in South Africa, my pond, fish and the warm sunshine just make me so bloody happy!

It's the start of spring here in South Africa, my pond, fish and the warm sunshine just make me so bloody happy!

Posted: 13 Sep 2020 10:59 AM PDT

Was at a mini golf place today and saw some koi!

Posted: 13 Sep 2020 09:10 AM PDT

1000 gallon sponge filter?

Posted: 13 Sep 2020 10:50 PM PDT

Can you buy 1000 gallon sponger filter I'm planning on getting into breeding koi soon and a want to use sponge filter and my baby and breeding tanks/ponds are going to be 500-1000 gallons and I want to use these filters without having to put a ton of them in.

submitted by /u/Snakes_for_life
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Koi behaving weirdly

Posted: 13 Sep 2020 05:51 PM PDT

Hello all, the mostly black koi in these pictures is Earl. I don't know what type of koi he is, but he is the second youngest fish in my pond and he grew very big very fast. My suspicion is that he is predominantly magoi. Is there a name for his variety?

Posted: 13 Sep 2020 10:40 AM PDT

URGENT: Koi staying at surface

Posted: 13 Sep 2020 02:47 PM PDT

I just moved my koi into a newer bigger pond today. pH was 7, ammonia, nitrate, and phosphorus levels were all at 0. The water is about 80 degrees F. They seemed good for about 20 minutes and then started staying at the surface and gulping. I have a waterfall pouring water down into the pond and a fountain going. There are two 8-10 inch fish right now in a 500 gal pond that is currently only half full. Any ideas on how to help them?

submitted by /u/bookbearwolf
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My gin rin platinum ogon butterfly in her oasis that I've designed :)

Posted: 13 Sep 2020 09:34 AM PDT

One of my koi just died, need some advice for the rest of my pond :(

Posted: 13 Sep 2020 11:59 AM PDT

One of my koi just died, need some advice for the rest of my pond :(

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Poor little guy...

One of my Doitsu Showa tosai koi fish just died this morning :( I found it at the bottom of my pond dead like a brick lying on its side (I think that's why one of its gills are a bit dirty looking)...

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Water levels last night, before I performed a filter cleaning and 15% water change this morning

I did notice last evening that particular fish was swimming constantly at the top of the surface of the pond unlike the other fish. In hindsight, this was definitely the signs of some type of issue (perhaps a swim bladder issue). I have a 6000 gallon above ground pond with a good filtration system (two settlement tanks, 1 biofilter tank, 2 sand tanks, UV light, large bog filter area) with plenty of aeration that I have running almost all day. I had tested the levels in my pond last night (picture is above) and I had alright levels I think (pH=8.2, ammonia=0.25ppm, nitrite=0.25ppm, phosphate=1-2ppm) so I was going to perform a coarse filter cleaning of my settlement filters and about a 15% water change this morning. I was also going to look further at the affected fish this morning as well. Of course, with my luck the poor fellow was found dead at the bottom of the pond. In retrospect, I should have immediately put the fish in a quarantine tank last night when I first noticed the weird behavior, but I did not think it would die so quickly overnight. Lesson learned...

I contacted the dealer who sold me the fish, and he said that it may have been accidental and looks like nothing (could have swallowed a rock or accidental issues). My biggest concern is making sure that the rest of the koi in my pond are safe and any necessary precautions are taken.

I have definitely noticed that my fish have been less active in the past few days, not eating as much, and hanging out in the bottom of the pond and in places to hide. However, I attributed that to a series of heron attacks that I started 4 days ago which gave them a serious predator scare. We've also had the large temperature drop over the past few days, so I thought the lack of eating was due to the lower water temperature. Other than that though, the rest of my fish look fine physically (from my very untrained eyes), and seem to be swimming ok. It was just that one fish that was showing that weird behavior last night of swimming at the water surface a lot.

I've attached pictures of the little guy at the bottom of the post. My dealer said initially it might have been a bacterial infection, but after I sent him clearer pics, he said that he couldn't really see anything wrong and that it may have been an accidental death. I obviously can't tell if there is something seriously wrong with the fish or not at a quick glance. My main concern is protecting the rest of the fish in my pond.

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Other side of my fish, gill seems a bit dirty because that was the side it was lying on in the bottom of the pond

Bottom of the fish

When I initially fished it out...

Top of the fish

As I said, I finished performing the water change this morning and my pond is slowly filling up with new dechlorinated water. Added a little extra Seachem Safe as well. Should I take any other preventative measures? I was thinking about adding salt to my pond, but I do have a lot of aquatic plants in there and I don't want them to die as well (but better the plants than the fish). I wanted to take a wait and see approach with quarantining individual fish on a case-by-case basis, but I was definitely blindsided by how quickly my Doitsu Showa died overnight, that I'm actually really nervous about the rest. I also have small bottles of API's Melafix and Primafix.

Any advice would be great!!

submitted by /u/deanze1
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