Stuff happens. Glad you've still got the vast majority, and the bigger ones. Any idea how hot the tank water got? I'm guessing you probably were scrambling to get it cooled down and may not have taken time to check a thermometer.
Stuff happens. Glad you've still got the vast majority, and the bigger ones. Any idea how hot the tank water got? I'm guessing you probably were scrambling to get it cooled down and may not have taken time to check a thermometer.
Last edited by Matt24; 07-06-2019 at 12:53 PM.
12hr update: vast majority is now down to about 50-70. Luckily I still have another 20ish tobies in the storage tote and another 30ish in a small outdoor pond
Tank water is usually between 68-72, when I noticed the fish huddling, it was upper 80s. 15-20 degree swing in less than a half hour is pretty significant, especially on the tiny fry
Hammatron, I came across a thought from a philosopher from decades ago, " Everything happens for the health of the universe." I have experienced many things in my life and I believe that the statement made by that philosopher is true.
I am very sorry that you lost to many and am just trying to learn from your unusual, unfortunate experience. From the photos in post 38, it looks like a whole lot more than 50-70, which you are now down to. So I it take that a lot higher percentage must have wound up dying later. [In your earlier post, you mentioned "(probably 5%) of fish in the process of dying".] I might have guessed a high, if not 100%, death rate from something like that, but what do you think the final percentage that died was?
It is real unfortunate, but at the same time, maybe it will allow the remaining 50-70 to thrive. Before the water change, i would have estimated there to be about 800 in the tank. I do have some pictures of most of the dead ones, but figured nobody wanted to see those lol
Matt - the initial 5% were all the very much smaller ones. My assumption is the bigger ones were able to handle it a bit longer before they couldn't take it, and subsequently ended up dying throughout the night.
Aside from that, below is an update on the biggest tobi, a about 1.25". Colors are starting to show up. This is the same fish from post #36
Thanks for sharing the results Hammatron, as grim as they may be. Perhaps the reduced numbers will allow the smaller ones to catch up with the tobi some. When they get a little larger in the coming weeks, you should be able to better identify smaller deformities and remove those, allowing more space for those with good conformation to grow more.
Should be interesting how the one pictured and the others develop. I am not sure what that one is going to be yet, maybe beni kumonryu or sanke.
Because pictures speak 1,000 words, below are all the fish (plus ~20-25 that are out of the picture) that survived the temperature swing. Downside is there are significantly less, upside is the small fish are starting to catch up with tobies. Dark fish are really starting to show patterning, yellow ones are still just solid color.
Day 60 After Spawn
Did a water change today and figured I'd net a few in the process. Snagged 3 dark and 3 light ones.
- I'm interested to see what the black tancho'ish spot becomes on the yellow one
- The white one (and a few in the tank) have huge bellies.Not sure if they are just constantly eating or if this is a development issue
- Not really these ones, but all the dark fish in the tank seem to mostly have acquired the black back and yellow belly from the dad
- It's surprising to see that a couple of them have some dorsal fins that are either partial or completely missing
- Now that they're growing, I can see that they're mostly doitsu. Some have some lateral lines, some have the messy large scales about the full height of their body, but most just have the dorsal scales with maybe 1 or 2 by their tail
Video of them swimming and not wanting their picture taken (I made it public, but google photos can be tricky, so I'm not sure if it will work):
https://photos.app.goo.gl/AxNZiJKTyqxjNje46
Last edited by HAMMATRON; 07-19-2019 at 07:42 PM.
I love the white one!
Should be interesting to watch these develop, especially that yellow one with the black marking.
When I attempted to attach a picture, the page went grey and forced a reload, so the cliff notes of what I typed before:
- Tired of keeping up the indoor tank
- Moved all the fish outside to a similar size pond by my front door
- Doesn't seem like it, but there are about 80 of them
- Video and picture below
Video: https://photos.app.goo.gl/77U5GQeEHxLiXaNg9
Picture:
They will probably like the extra space out there. If you have any herons or other such type of fishing birds in your area, you might want to consider covering the pond with orchard netting or something. A heron could catch a bunch out of there.
Luckily the herons stay away from that one since it's right by the front door and in a bit of a nook, surrounded on 3 sides..... but that doesn't hold true for neighborhood cats and raccoons. I actually have video from my security camera of a family of 6 raccoons coming by around 3am and eating about 12 last year.
I ended up building a pvc frame with chicken wire covering the whole thing. Not exactly attractive, but it keeps them out and the fish alive. I was going to use netting, but i was concerned that either they would reach through it, or they would get tangled and stuck and then I have a whole new problem on my hands lol
92 days since spawning
All the fish are outside now and living room is finally free and clear of the obstructive 150gal tank.
I have an obnoxious PVC frame with chicken wire on top of it placed in the pond which looks terrible, but it keeps the raccoons from eating the fish, so I guess it will stay. It's a bit of a pain to pull out, so I didn't net any of the fish, but just took pictures during feeding instead.
All are looking like pretty clean and leather'y doitsu at the moment. Every time I walk up, I see all the white/yellow fish and forget that there are dark/black ones almost 1 for every 2 light-colored fish.
White ones are starting to show some coloration, either turning yellow or getting some yellow spots. No red coloration from the mom, it looks like the dad's genes are really the dominant ones, especially in the dark fish you can see they all have yellow bellies.
If you look carefully at the bottom half around the middle of the photo, you can see a fairly large dark one
Again, looking carefully, you can see about 7 dark fish that are almost missable
Last edited by HAMMATRON; 08-20-2019 at 02:27 PM.
Fat happy babies! They look great!
Question: Are Doitsu and leatherskin the same thing? I *think* I have a leatherskin but I'm not 100%.
Hi Hope - Doitsu is the term for scaleless koi. There's a few different variations, whether they are completely scaleless, have scales running down their lateral line or along their back, etc.
they look like chunky tosai
They're lookin' good, and they definitely like what you're cookin'!