Is it ok to treat and condition water in empty 2 litre water bottles?
I have a betta that became a bit naughty as he matured and got into some fights in a community tank. He now lives by himself but ended up with fin damage. I am doing daily water changes with prime to help him grow back what he damaged and it seems to be working. I don't mind doing the daily changes but it is a big pain to go out to the garage, get the buckets and then prep the water on a daily basis. It takes me longer to do this than the water change.
Is it ok to use empty water bottles - treat the water in these bottles in advance and then put the lid on (have kids so need the bottle to be closed or it may get knocked over)? I would then create a batch for the week and pour the water from bottle into bucket, get the temp right and do the change.
Would that be ok or would having the water in a bottle with lid on somehow mess with the treatment?