Fin rot?

[Amimyster]

Pretty sure it's fin rot. Water parameters are pristine now ( 7.1,0,0,0,78) but 4 days ago there was an ammonia spike when my yoyo loach died (never knew what killed him. He just breathed super fast for days. He was 5.) Next morning noticed this on my 3 anglefish. Treated API fin and body cure. The others look better but this one is still not looking great.

 

[Colin_T]

Any chance of a video without the bubbles and hold the phone horizontally so the footage fills the entire screen?

If it's fin rot, then big daily water changes, gravel cleaning the substrate, cleaning the filter if it's more than 2 months old, and adding salt usually fixes it.

Wipe the inside of the glass down with a clean fish sponge. This removes the biofilm on the glass and the biofilm will contain lots of harmful bacteria, fungus, protozoans and various other microscopic life forms.

Do a 75% water change and gravel clean the substrate every day for a week.
Make sure any new water is free of chlorine/ chloramine before it is added to the tank.

Clean the filter if it hasn't been done in the last 2 weeks. However, if the filter is less than 8 weeks old, do not clean it. Wash the filter materials/ media in a bucket of tank water and re-use the media. Tip the bucket of dirty water on the garden/ lawn.

Add some salt, (see directions below).

---------------------
SALT
You can add rock salt (often sold as aquarium salt) or swimming pool salt to the aquarium at the dose rate of 1 heaped tablespoon per 20 litres of water. If there is no improvement after 48 hours you can double that dose rate so there is 2 heaped tablespoons of salt per 20 litres.

Keep the salt level like this for 2 weeks, then stop using it.

The salt will not affect the beneficial filter bacteria, fish, plants, shrimp or snails.

After you use salt and the fish have recovered, you do a 10% water change each day for a week using only fresh water that has been dechlorinated. Then do a 20% water change each day for a week. Then you can do bigger water changes after that. This dilutes the salt out of the tank slowly so it doesn't harm the fish.

If you do water changes while using salt, you need to treat the new water with salt before adding it to the tank. This will keep the salt level stable in the tank and minimise stress on the fish.

When you first add salt, add the salt to a small bucket of tank water and dissolve the salt. Then slowly pour the salt water into the tank near the filter outlet. Add the salt over a couple of minutes.

 

[Amimyster]

I have an undergravel filter. I have been doing water changes daily. I also cleaned the inside of glass. Was considering to clean a cooler really well. Place all water and fish in cooler with an air stone and then vacuuming out and cleaning all the substrate. I personally didn't want an undergravel filter, but husband insisted. I didn't know if that would help or potentially be worse. I also use a canister filter as well. I cleaned it completely. Water parameters haven't changed since yesterday. I'm iffy about the salt. I have mystery snails a clown pleco and still 1 yoyo.

 

[Amimyster]

Any chance of a video without the bubbles and hold the phone horizontally so the footage fills the entire screen?

If it's fin rot, then big daily water changes, gravel cleaning the substrate, cleaning the filter if it's more than 2 months old, and adding salt usually fixes it.

Wipe the inside of the glass down with a clean fish sponge. This removes the biofilm on the glass and the biofilm will contain lots of harmful bacteria, fungus, protozoans and various other microscopic life forms.

Do a 75% water change and gravel clean the substrate every day for a week.
Make sure any new water is free of chlorine/ chloramine before it is added to the tank.

Clean the filter if it hasn't been done in the last 2 weeks. However, if the filter is less than 8 weeks old, do not clean it. Wash the filter materials/ media in a bucket of tank water and re-use the media. Tip the bucket of dirty water on the garden/ lawn.

Add some salt, (see directions below).

---------------------
SALT
You can add rock salt (often sold as aquarium salt) or swimming pool salt to the aquarium at the dose rate of 1 heaped tablespoon per 20 litres of water. If there is no improvement after 48 hours you can double that dose rate so there is 2 heaped tablespoons of salt per 20 litres.

Keep the salt level like this for 2 weeks, then stop using it.

The salt will not affect the beneficial filter bacteria, fish, plants, shrimp or snails.

After you use salt and the fish have recovered, you do a 10% water change each day for a week using only fresh water that has been dechlorinated. Then do a 20% water change each day for a week. Then you can do bigger water changes after that. This dilutes the salt out of the tank slowly so it doesn't harm the fish.

If you do water changes while using salt, you need to treat the new water with salt before adding it to the tank. This will keep the salt level stable in the tank and minimise stress on the fish.

When you first add salt, add the salt to a small bucket of tank water and dissolve the salt. Then slowly pour the salt water into the tank near the filter outlet. Add the salt over a couple of minutes.

Also the other 2 anglefish have recovered almost 100% but the one in video still doing bad