Sorry guys for asking these questions but I'm not very smart on canisters and sumps yet so I have the old HOB filters. But i'm wondering is it safe if I just did a whole media cleanup. Took out all the media + filter and ran them through hot water to clean them up. (been having problems with high nitrate lately). I never had nitrate pass 20ppm and now the readings are usually around 50ppm and so.....yea thought it was the media with nitrate in them so I washed them up. So is it safe?
Thanks all.
Thanks all.