I set up a 55litre tank just over a year ago when I was a bit new to the hobby and it only used sand. I've just set up a new 40 litre tank and have used Aquasoil and arranged things better.
Is there any way I can change the substrate in my older tank to use Aquasoil without moving this fish somewhere? I understand that the Aquasoil causes an amonia spike so would I be best to avoid doing this? Would it be best to do half the tank, leave it to settle and then do the rest?
I basically want to rescape the tank but this is the first step, if it can't be done then I will have to live with it?