Akasha72
Warning - Mad Cory Woman
no, if you wash your new sand really really well before hand and have it ready in containers all you need do is move your fish into another container - with a lid I wouldn't wish on anyone what's just happened to me (favourite fish jumped from an uncovered tank and I didn't see and now she's dead) then scoop out your old substrate - I find a net is the easiest way - dump it into containers then put your new substrate straight in. Do a decent sized water change to clear things up a bit and then set the filters going. Things should be clear enough for the fish to go back within the day.
Tank might be a bit cloudy for a few days whilst things settle down and it's worth keeping a close eye on the water stats too for a good week just to be sure you've not started a mini cycle but it's all do-able
Tank might be a bit cloudy for a few days whilst things settle down and it's worth keeping a close eye on the water stats too for a good week just to be sure you've not started a mini cycle but it's all do-able








