Any harm in adding the substrate later?

Carefree_Dude

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I just recently bought a new aquarium, a small size upgrade from my current one. I ordered some sand for it, but the sand wont arrive for another week. Can I get the fish and everything moved now to the new aquarium and add the sand when it arrives? Or is it better to add the sand before filling it?
 

kno4te

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It’s easier to add prior to the fish and filling of water.
 

Icky sticky

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I wouldn't move the fish yet. Let the new tank cycle first unless your moving most the stuff from the old tank to the new one.
 
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LBDave

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Not sure what fish you have but I am in same situation. I know my fish will be shocked when moving to a new tank so I am going to hold and get everything ready.
 

LBDave

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I just have three young peacock cichlids.
Probably won't be a big deal for them if you add sand later. It's not something I would lose sleep over.
My fish are my pride and joy. They are in a crowded tank right now. When I move them that will be it for a long time.
Pbass and oscars. So I am just going to shock them once. My case a little different I think because I am moving them to a new tank and filter.
Hopefully I can get cycle going. We shall see and they will wait.
 

Jexnell

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Really should not be an issue, I just did it actually.
Had to move my tank, kept the sand out cause I have to move it again (apt being remodeled) well the fish was freaking out seeing his reflections so I put it back in during a water change when the water was real low. Used a plastic bowl to pour it right where I wanted it. Water was clear an hour after the water change was done. The fish ,a Festae, handled it just fine.
 
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