PB_Smith
Aquarium Advice Addict
Flawed in some ways definitely but I do sympathise slightly for Bbradbury. He/she is not wrong in saying that large weekly water changes will probably prevent a lot of problems down the line.
It's not a bad method or habit to have. I personally just don't believe it's necessary. Because of what I now understand. This doesn't mean Bradbury lacks knowledge when it come to water chemistry etc. I believe he/she is a very experienced keeper and that he/she has come across most of the problems we all face at some point or other. I believe his/her method is simply preached to newbies because it's easy although not always necessary.
Telling a newbie to change 50% every week maybe a good way to ensure most people run in to less problems down the line and I believe by encouraging people to do this, less people will come on here with problems.
Yeah, error on the side of safety and all that,
BUT
There are a lot of fish that do not take kindly to such large water changes.
In my mind a change of 50% is really only warranted in the event of emergency/really bad water parameters.