mr_X
Aquarium Advice Addict
i would be deathly afraid to fill that tank back up and put corals and fish in it after driving it across town. a 5 year old sand bed that's 5" deep is a lot to deal with.
here's a good test- if in fact you are transporting it like you said and there will be water covering the sand bed as you move it around and drive it as far as needed, when you get it in place at your home, evaluate the water covering the sand bed. is it all murky and nasty looking? if so, i would at the very least rinse the sand thoroughly before using it.
this is also assuming the sand bed will not go through any drastic temp changes, like being in the back of a pickup truck for a half hour in the winter weather. if that is the situation, there will be some die off in the bed. another potentially hazardous situation.
here's a good test- if in fact you are transporting it like you said and there will be water covering the sand bed as you move it around and drive it as far as needed, when you get it in place at your home, evaluate the water covering the sand bed. is it all murky and nasty looking? if so, i would at the very least rinse the sand thoroughly before using it.
this is also assuming the sand bed will not go through any drastic temp changes, like being in the back of a pickup truck for a half hour in the winter weather. if that is the situation, there will be some die off in the bed. another potentially hazardous situation.