Changing aquarium to bigger one?

I agree with using new sand. Your old rock will help bring your biological filtration from your old tank to your new tank. I always use Marco rocks because they are the cheapest but they are white so that might look weird to you with all your current established rock
 
I agree with using new sand. Your old rock will help bring your biological filtration from your old tank to your new tank. I always use Marco rocks because they are the cheapest but they are white so that might look weird to you with all your current established rock
That’s the problem to look at white rocks Lol
Thank so much for you response :)
 
Do you have any suggestions about which rock to add? Because I saw some companies that sold rocks and af rocks with their purple look color is taking my attention
Honestly whatever you like. A ton of people use Marco rock now. I have caribsea dry rock and it's bene great.
 
That’s the problem to look at white rocks Lol
Thank so much for you response :)
I don’t think there is one rock better than the other. Just get what you like. I get Marco because it’s cheap and I don’t mind waiting for it to mature. You can get whatever you think most closely matched your current rock
 

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