FW Albino Cory Fish Help!!!

[MombasaLionfish]

I know this is a SW form but I really needed help. I have a 30gl tank with 3 goldfish 2 algae eater fish I forgot the names of and one albino cory catfish. The tank has been running for over nine years. No new fish additions. I have had this cory fish for over 6 years and really like it. I found it yesterday not moving on the bottom of the tank not eating it looked dead. I was really sad and had no clue what had happened. I was about to take the fish out with a net but it swam away then stopped moving again upside down. Today I saw a little bit of gill movement and upside down in a different place. I feed the tank barely any pellets the fish mostly just eat the plants, snails, and algae in there. Any help is appreciated.

 

[VKP01]

Do you have more details about your tank? Parameters? Corys are shoaling (group) fish, as well as sand sifters, not having a shoal or sand can add stress, but tbh in this situation it sounds like the most likely cause is just old age.

 

[MombasaLionfish]

0 Nitrate 0 Ammonia 0 Nitrite. I was looking at other FW threads for this and they said the same thing about the schooling part. I should also add all the other fish are in good condition.

 

[VKP01]

The average lifespan is 5 years, so unfortunately it’s probably just his time

 

[MombasaLionfish]

Probably I just asked my Mom and she said he was 10+ years old (one of the first fish in that tank) so he lived a good life.