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Welcome to TFF.
I have very little experience with fish disease (fortunately) and I willnever guess. Other members like @Colin_T or @Deanasue or @essjay will be able to offer advice on the specific issue.
But the green tint to the water and the green algae on the substrate suggests there may bee water condition issues, and these can stress fish making them more susceptible to any disease. Can you post numbers for tests like ammonia, nitrite, especially nitrate, and what is the GH (general hardness) and pH? This data will help the other members too.
Rummy nose should be in a larger group, but let's get this issue resolved before that...and we need to know the tank size (volume and dimensions) going forward.
probably over the past 5 days ive noticed it and some fish are now ‘tilted’ such as 3 cardinal tetras and 2 other neons. I am unable to get any ph or gh numbersHow long did it take to get that fat?
It's either a tumour or cyst or internal bacterial infection.
Tumours and cysts take a month or more to grow that big. The fish will normally keep eating while these grow. Eventually the fish dies.
Internal bacterial infections cause the fish to swell up overnight and the fish normally stops eating and dies a few days later.
probably over the past 5 days ive noticed it and some fish are now ‘tilted’ such as 3 cardinal tetras and 2 other neons. I am unable to get any ph or gh numbers
okay i live in the uk anyway so all the water is regulated properly unlike most countries, anyone know what i should do next i did a 20% water change today.It's not caused by water quality but if you have concerns about water quality, do a 75% water change and gravel clean the substrate every day for a week or two. This will dilute any nutrients and disease organisms that might be in the water and reduce the chance of other fish getting sick.
Make sure any new water is free of chlorine/ chloramine before it's added to the tank.
how would i do this ?Check your nitrates because a lot of the UK members on this forum often have high nitrates in their water supply. High nitrates can stress fish and weaken them, and allow other health issues to occur.
You want nitrates to be less than 20ppm.
okay so i did a big water change and everything is clear minus a few annoying leaves. although 2 fish concern meHow long did it take to get that fat?
It's either a tumour or cyst or internal bacterial infection.
Tumours and cysts take a month or more to grow that big. The fish will normally keep eating while these grow. Eventually the fish dies.
Internal bacterial infections cause the fish to swell up overnight and the fish normally stops eating and dies a few days later.
okay so i did a big water change and everything is clear minus a few annoying leaves. although 2 fish concern me
one is at the surface breathing rapidly whilst one is quite jitteryokay so i did a big water change and everything is clear minus a few annoying leaves. although 2 fish concern me
yeah i did and i have a big sponge filter that does that i cant get anything rlse what with lock downDid you dechlorinate the new water before adding it to the tank?
Increase aeration/ surface turbulence.