Hey everyone I have an issue that I need some help or ideas on
I have been a long time lurker on koiphen and honestly every issue I have had I always just do a search and find the answer to it but this one has me stumped.
I recently did a pond up grade added some depth and a seaside aquatics 35 rdf
So I figured I would do the plunge into some nicer fish. My pond is 6 years old with just some garden shop koi in it so over the years with the garden shop fish I have learnt a lot about parasites.
I got 6 tosai from japan a couple weeks ago only quarantined them for a few days used water from my pond for this (don’t have a good system yet)did a scrape on a couple never found anything they were just quarantined. so I just added them to the pond not worried if I had to treat the whole pond anyway.
Week 1 everyone was happy. Started to feed them and my other fish on hikkari wheatgerm all is good pond temp is still only 52 deg here. The kohaku was a little pig I think his eyes are bigger than his belly only fed a couple times during the week. Week 2 the kohaku started to sink tail first then lay on the bottom fins clenched I figured oh great bugs but whatever,I will just figure out what so I started catching all my fish 1 by 1 and doing check ups and I can’t find any bugs but I fed a couple a of times in week 2 and the kohaku would swim up off the bottom to eat. At this point it was the only fish with any problems so I was thinking Maybe a dud..
Towards the end of week 2 wife messaged me at work saying I thought the kohaku was dead laying flat on its side one the bottom she tried to net it not dead it swam away
I got home from work it was laying flat on it’s side on the bottom again but now 2 other fish are on the bottom fins clenched so I thought maybe at the colder water temps maybe eating to much swim bladder issues??
I took the 3 out of the pond brought them in the house got the water temp up to 65deg over a couple days added salt to 0.1% on day 1.brought that up to 0.3% its been there for 3 days haven’t fed them for 4 days if you don’t make them move they just lay off kilter on there sides still now all 3 do it but the kohaku is the worst tried.
feeding peas tonight read this could help if it a digestion issue but they gobble them up as soon as i drop them in there then just spit them out( don’t like peas i guess)
Stopped at the local pet store tonight to see if they have any meds for a bacterial swim bladder maybe??
But guess what I live in Canada and apparently now we can’t just buy fish meds guess its a good thing I haven’t found any parasites.
The other 3 fish that came in the same bag are happy just swimming with the fish I already had
Water parameters are
Kh a month a go was only 1 drop live in a rain forest so this is an issue but my ph doesn’t swing much usually 7.5
I started adding baking soda about a month ago slowly added 4 pounds so far got my ph up to 8.1 and kh to 4 drops
Ammonia is not readable on api drop test
Nitrite is not readable api
Nitrate not readable api
So I can’t see any water problems
Water temp is low 52deg
Pond gallons I am not sure on since I added depth need to salt it to figure that out still
I am wondering these fish flew from japan to Canada were quarantined then They flew on a float plane to me so could the pressure change with all the flying cause issues??
At this point I have 3 happy fish and 3 unhappy fish any one have any ideas on the best plan moving forward?
I do really want to thank the koiphen community for all the information that is on here I have learned alot