my goldfish fry hatched Saturday April 14 and i want to know when can i change their water how old do they have to be for me to be able to change their water. also how old do they have to before i can put a power filter in their with them and when can i change the tank that they are to another one.How many weeks do the goldfish need to be before i can change their water?You can change it at any time. Just remember fry are more sensitive to changes in water chemistry/temperature so make sure the parameters are very close.
They need a filter now, of some sort. Just use a prefilter so they cannot get sucked in.How many weeks do the goldfish need to be before i can change their water?Desn't matter. You need to continue to do weekly 25% water changes with a gravel siphon. You just have to be careful not to suck up any fry in the process.
Emaculate water quality is more important for fry than full sized fish.
