what goes first, rock water or sand?!


Hello, starting up my first tank very soon! done a lot of research, now just wondering what the proper procedure is on starting up the cycle?? ive heard different opinions that rock sand and water all go first..so wondering what ya'll have to say, thanks.


I always put my substrate in then add water, leave a little room at the top, then put in any decorations. I do this because the substrate is going to displace a large ammount of the water, so I'd rather have it in the tank first. Decorations displace water, that's why I leave some room then top it off after decorating


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