I’ve been in this hobby for 5 years , and the one disease that I have not manage to beat is this one that you can see , I think I did most of things right , I started a new tank , I cycle it for a month, check the ppm , ammonia nitrite and nitrate and all of that , got some fish , quarantine both of the goldfish for 14 days no signs of sickness or virus that’s in them I put the in the main tank thinking is all good , the first month is all and all good you know , I changed the water every week , check the ppm u know the usual , because of some family issue I left home for 5 days and comeback with this , idk what disease is this , i used to get the same disease 2 years ago but i didn’t manage to cure it , and now im scared of losing my new fish , can yall help ?
need help immediately
- Thread starter sq5s
- Start date
The photos are not clear enough to really see what it is but my best guess is costia or ich. Both can be treated with malachite green, formalin or progressive salt treatment, though it looks advanced enough that I'd go with the dye (malachite green) which is commercially available as an ich/parasite treatment in most pet stores under various brand names. Some brands combine malachite green and formalin, which is especially effective.
What did you treat them with last time? For future reference, 2 weeks is the bare minimum QT for goldfish. A month or longer is what the veterans suggest.
How big is the tank? The fish look large in relationship to the tank. How much water do you change weekly? I do 75% weekly water changes on mine and some goldfish fanciers do more, and more frequently than weekly. Large fancy goldfish such as your ranchu are high maintenance.
What did you treat them with last time? For future reference, 2 weeks is the bare minimum QT for goldfish. A month or longer is what the veterans suggest.
How big is the tank? The fish look large in relationship to the tank. How much water do you change weekly? I do 75% weekly water changes on mine and some goldfish fanciers do more, and more frequently than weekly. Large fancy goldfish such as your ranchu are high maintenance.
I’m gonna get another photo in the morning , but i can safely say it’s not ich , ive dealt with ich before and that is not it , i have a 50 gallon tank for 2 ranchu goldfish , weekly i change th water roughly 75% i ussualy treat it with salt and methylene blue and that ussualy does the trick for all my sick fish EXCEPT THIS PARTICULAR one , with ich i can treat it easily with methylene blue and salt , but idk why or how this one is different , and i use 2 medium sponge filter , and a heater set to 28° Celsius , sorry if its really late ,
And I already put them in a hospital tank that’s why the fish look huge
If it's not ich and heat hasn't worked lower the temperature asap. You could just unplug the heater altogether. The other 'slime disease' goldfish issue--chilodenella etc-- is aggravated by high temp. I'd try the malachite green.
I know it may sound odd but two large ranchu in 50 gallons is actually overstocked. Minimums are 40 gallons for the first fish and at least 20 for each additional. Two sponge filters for two glutinous ranchu in 50 gallons doesn't sound like enough even with 75% water changes.
I know it may sound odd but two large ranchu in 50 gallons is actually overstocked. Minimums are 40 gallons for the first fish and at least 20 for each additional. Two sponge filters for two glutinous ranchu in 50 gallons doesn't sound like enough even with 75% water changes.
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Aight , can you help me in the morning when I get that better picture ? And btw thank you so much for replying super fast , and I’m also planning after the sponge filter is to get a canister filter , and if you think my ranchu is that big , it’s not they are around 5cm with the tail , and this is a new tank so it is never been used before on any sick fish , my hospital tank is currently without any heater , maybe that’ll help
I edited my response. After further consideration, if high heat isn't working then you can eliminate costia as well. It sounds like chilodenella and high heat will certainly aggravate it. If your ranchu are that size you are not overstocked...yet.
Do you have any ideas to help while they’re on the hospital tank ? I already put some methylene blue and salt , and 2 aerator that are constantly running
There's no need to move them to a treatment tank. I'd lower the heat, continue do frequent water changes. Sorry to say there are several pathogens that come in on Asian-bred goldfish that are becoming resistant to conventional treatment. I'm told there are now several strains of costia, for example, that are salt-resistant and high heat resistant. Some thrive at low temps, others at high. It's vexing, I know. But if it's chilodenella, lowering the heat and treating with one of the commercial malachite green/formalin solutions should help.
Idk man that sounds terrifying to hear , but I love them cause I’m sacred if I left them there it’ll be much worse , because the last time that died with the same disease were on the same tank that it got the disease that’s why this time I move them , I’m keeping a close eye on them , I have not feed for 6 days because of my family issue , but they’re are now starting to swim a little in the hospital tank , and get excited when they see me , not like when they’re in the main tank
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