Come People, I'm really shocked here,
Nobody even bother to start from the begining......
How old is the tank, do you have a filter on it,
then after you know how old the set up is, the water parameters is the next one,
and What are the catfish your talking about?
Gottta know these things before you can start to give solutions on how to fix what you don;t know is broke.
50% w/c twice a day on a new tank IMHO, is to much......10% a day maybe......but not 50 twice, it wouldn;t get a chance to get the bateria started in the right direction.
Just my 2 cents worth.
Nobody even bother to start from the begining......
How old is the tank, do you have a filter on it,
then after you know how old the set up is, the water parameters is the next one,
and What are the catfish your talking about?
Gottta know these things before you can start to give solutions on how to fix what you don;t know is broke.
50% w/c twice a day on a new tank IMHO, is to much......10% a day maybe......but not 50 twice, it wouldn;t get a chance to get the bateria started in the right direction.
Just my 2 cents worth.