Hello everyone, Just found your forum today and been reading a lot of posts, haven't really posted anything as I didn't feel the need to add anything else to the posts, as I am a newbie to this planted tank world and so far don't have much knowledge. I am just wondering whats the best way to go about changing the substrate on a tank that has been running for a while. Can i change it while the fish are in there? What are the dangers other than maybe stressing out some fish? My tank is heavelly planted at the moment as you can see from the image below, I just want to change the look of the substrate/gravel as I want to create a carpet at the front of HC or glosso. what would you guys recommend? Hope that I can get some pointers here in the right direction. I also have 3 clown loaches which I want to find a better home for, don't really want to take them back to the store, any other suggestion? Anyone wants to give them a better home? Many thanks, any help appreciated.