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Possible fungus in community tank

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Jwgoff7772

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I currently have a 40-gallon breeder tank that I am currently trying to cycle with stability and Prime, on day 10 and I've been checking my water parameters everyday with no ammonia and no nitrates or nitrites my pH is normal, the parameter that's a little high is gh, at about at about 120ppm but one of young panda cory (about 1 inch in length, maybe smaller) and I noticed that its tail fin is about half the size it should be and also there is a cotton looking spot on the fin between the dorsal and tail fin and also if you look at his black patch near his tail you can maybe see a string of the same possible substance, he is also acting very fatigued and didnt even try to move when I removed him from the tank. all my other fish are acting normally and look fine, research says it maybe fungus...he is in a community tank with 9 other corydoras, 2 full size and 7 other younger ones about 1 inch as well. My other fish is a pearl gourami. What steps should I take? I put the injured cory in a hospital tank but is my whole tank possibly infected with whatever this is and if so how do I treat it the tank and my injured cory. 20190331_211002.jpg
 
Jwgoff7772 said:
I currently have a 40-gallon breeder tank that I am currently trying to cycle with stability and Prime, on day 10 and I've been checking my water parameters everyday with no ammonia and no nitrates or nitrites my pH is normal, the parameter that's a little high is gh, at about at about 120ppm but one of young panda cory (about 1 inch in length, maybe smaller) and I noticed that its tail fin is about half the size it should be and also there is a cotton looking spot on the fin between the dorsal and tail fin and also if you look at his black patch near his tail you can maybe see a string of the same possible substance, he is also acting very fatigued and didnt even try to move when I removed him from the tank. all my other fish are acting normally and look fine, research says it maybe fungus...he is in a community tank with 9 other corydoras, 2 full size and 7 other younger ones about 1 inch as well. My other fish is a pearl gourami. What steps should I take? I put the injured cory in a hospital tank but is my whole tank possibly infected with whatever this is and if so how do I treat it the tank and my injured cory. View attachment 90774
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Hello and welcome to the forum. Is there any chance you could post some more pictures? This will allow us to clarify the problem. If it is fungus then yes it is contagious. You may have been lucky enough to catch it in time before it spread. Best of luck.
 
Here is another picture, sorry my phones camera isnt the best
 

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I bought some API fin and body cure that has doxycycline
 
Jwgoff7772 said:
I bought some API fin and body cure that has doxycycline
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I can’t see the picture very clearly, however I do notice some tears to the tail is this correct? This could either be a nip from another fish or the start of finrot. I can also see white streaks on the fishes dorsal fin? Is this the fungus you are referring too? I would recommend 75% daily water changes and gravel cleans. You don’t seem to have gravel in your hospital tank. Does it have a filter and heater? Most diseases naturally become better with pristine water conditions. I have never personally used api fin and body cure, though I imagine many members on the forum have and can advice further. How often are you doing water changes in your 40g? When you say the PH is fine, what level is this at? Good luck.
 
Yes there is a filter and heater in his hospital tank, I did a 50% water change last night, the tank has only been set up 13days so it's still trying to cycle, I did a 30% water change on the 8th day and did another 50% when I noticed this issue last night but his tail fin is missing about 1/3 of its length and his dorsal is starting to rot, the fin between and tail and dorsal is laying flat (maybe gone) and looks like a small cotton ball on it, I know the picture isnt great, I spent about 30miks trying to get a good picture but yes the white streak on the black patch near his tail is the fungus I'm referring to. He also has hardly moved since i noticed it and I've kept a very close eye in the fish being cories are a little more sensitive to water parameters and I've religiously dosed daily stabilty and prime (2x normal prime dose) and also i had a tank that was cycled and I moved all the cycled decor from old tank to the 40 gal and also put the cycled filter media in my aqua clear 50 from the old tank. I also check parameters twice a day, once in morning and once at night for the last 13 days with api master kit and tetra 6 in 1 strips just to be ableto compare the two tests. My ammonia, nitrites and nitrates are all still 0, alteast that's what my test are saying and I happened to have two ammonia test kit so I believe it is accurate with the 0 ammonia, thank you for the replies. Is the med I got one that you would recommend? Sorry if there is any run on sentences.
 
Jwgoff7772 said:
Yes there is a filter and heater in his hospital tank, I did a 50% water change last night, the tank has only been set up 13days so it's still trying to cycle, I did a 30% water change on the 8th day and did another 50% when I noticed this issue last night but his tail fin is missing about 1/3 of its length and his dorsal is starting to rot, the fin between and tail and dorsal is laying flat (maybe gone) and looks like a small cotton ball on it, I know the picture isnt great, I spent about 30miks trying to get a good picture but yes the white streak on the black patch near his tail is the fungus I'm referring to. He also has hardly moved since i noticed it and I've kept a very close eye in the fish being cories are a little more sensitive to water parameters and I've religiously dosed daily stabilty and prime (2x normal prime dose) and also i had a tank that was cycled and I moved all the cycled decor from old tank to the 40 gal and also put the cycled filter media in my aqua clear 50 from the old tank. I also check parameters twice a day, once in morning and once at night for the last 13 days with api master kit and tetra 6 in 1 strips just to be ableto compare the two tests. My ammonia, nitrites and nitrates are all still 0, alteast that's what my test are saying and I happened to have two ammonia test kit so I believe it is accurate with the 0 ammonia, thank you for the replies. Is the med I got one that you would recommend? Sorry if there is any run on sentences.
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I’m pleased to know he has a filter and heater in his tank and you’re performing water changes. I known t can be a pain to get pictures of fish don’t worry, it took me 40 minutes trying to get a picture of one of my guppies once. Their just to quick! I also use the tetra 6 in 1 test strips and the small api liquid ammonia kit. Moving the old filter media over was a good move to make. This would have added a lot of beneficial bacteria to your tank. If it was me personally, I wouldn’t treat all the fish if they have no obvious signs of illness. I say this because adding medication to tanks causes more harm than good sometimes unfortunately, and if it can be avoided it should be. I would continue to treat your poorly fish in his own hospital tank, make sure you follow all advice as per instructions with medication to avoid further stress. Anytime ammonia or nitrites are above 0 in the hospital tank perform a water change (it seems like you’ve been doing this anyway). The treatment you’re using will hopefully clear up any fungus/finrot he has and you can move him back later. Keeping lots of love plants provides shelter for the fishes and reduces aggression. I would consider adding some if you haven’t already. However some medications can harm them. Best of luck.
 
Ph is at 7.2, out of tap its 7.0 buy after off gassing it comes to 7.4. This med I got says it does not effect the bio filter, is that your concern about more harm thank good? Or can I ask what you meant by that? Thank you very much for the help bu the way
 
Jwgoff7772 said:
Ph is at 7.2, out of tap its 7.0 buy after off gassing it comes to 7.4. This med I got says it does not effect the bio filter, is that your concern about more harm thank good? Or can I ask what you meant by that? Thank you very much for the help bu the way
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Since cories and gouramis like a PH between 7-8 your PH is fine. I was trying to explain that your filter media has all the beneficial bacteria. So it was a wise move carrying this over. Adding medication can sometimes do more harm then good to the fish if you don’t know exactly what you’re treating for. The medication you’re using states it doesn’t harm the biological media which is also a positive sign. Hope this makes more sense.
 
First I wanna say again how very grateful i am for your input and taking a few mins to speak to me and Yes I understand the beneficial bacteria, the nitrogen cycle and that nitrifying bateria needs a surface area to attach to (not the water itself) i.e filter media, substrate, decor. I have very good flow, filtration and aeration, cover for the fish, soft decor with no sharp edges and I only feed them name brand foods but I was just wondering what risk there was in using it as a preventive to my other fish just in case it had spread and I just haven't seen it yet. I did about a month of research before i set up so I'm assuming I did all the right things for little guys, wanted to as responsible fish keeper as I could be with what info I had to go on. Is there risk involved using meds like antibiotics, in this case doxycycline, as a preventive? Again thank you
 
Jwgoff7772 said:
First I wanna say again how very grateful i am for your input and taking a few mins to speak to me and Yes I understand the beneficial bacteria, the nitrogen cycle and that nitrifying bateria needs a surface area to attach to (not the water itself) i.e filter media, substrate, decor. I have very good flow, filtration and aeration, cover for the fish, soft decor with no sharp edges and I only feed them name brand foods but I was just wondering what risk there was in using it as a preventive to my other fish just in case it had spread and I just haven't seen it yet. I did about a month of research before i set up so I'm assuming I did all the right things for little guys, wanted to as responsible fish keeper as I could be with what info I had to go on. Is there risk involved using meds like antibiotics, in this case doxycycline, as a preventive? Again thank you
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At one point I would have agreed with you, and I probably would have said to add a dose in to make sure the other fish don’t get it. However, with time I’ve learnt that adding medication of any sort stresses fish out. It’s better to let the fish fight anything of naturally if you can. I like to think that in their own habitats they have no one to treat them for these diseases. Their only option is to fight it of naturally. To replicate this I try to avoid adding medication in if it’s unecessary. If your other fish were showing similar signs to the one in quarantine I’d be advising you to add medication in. I think healthy water is the best way forward. This is my personal opinion only, everyone does things differently. Good luck.
 
Guppylover is learning to give some good advice! My only concern is the number of water changes. I agree 100% that clean water is the first step in healthy fish. However, since you’re trying to cycle your tank, unless your parameters are going up, I would try to keep the water changes down as much as possible. Give the tank a chance to get some ammonia going. In the QT tank, do lots of w/c’s. Good luck and keep us advised.
 
Deanasue said:
Guppylover is learning to give some good advice! My only concern is the number of water changes. I agree 100% that clean water is the first step in healthy fish. However, since you’re trying to cycle your tank, unless your parameters are going up, I would try to keep the water changes down as much as possible. Give the tank a chance to get some ammonia going. In the QT tank, do lots of w/c’s. Good luck and keep us advised.
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Thank you Deanasue! I have learnt from the very best of course (yourself)! I also agree with the advice provided about too many water changes. The only reason I did not mention this myself is because I am one who is also guilty of getting a bit to happy with water changes... Water changes are only necessary when ammonia or nitrites appear or if there are infrequency in levels of PH/GH. I would follow any advice Deanasue provides she is a lot more experienced than myself and has a number of beautiful tanks set up. Always happy to also help and excellently advice me also. Keep us posted we are more than happy to help. Good luck :)
 
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