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my 400 gallon predator tank initial build...I have about 7 more pieces of rock I'm cleaning to add in....one carved into a skull face:P...my idea here is to keep the front half of the tank open to allow more swimming space for the larger fish
 

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Do you guys think it would be ok to use cement/mortar to hold rocks together?
 
Do you guys think it would be ok to use cement/mortar to hold rocks together?

I just finished my second scape that use cement to bond the rock together. I purchased the cement from a local store in Orlando, Top Shelf Aquatics but the before they carried the product I purchased it from macrorocks.com. No water issues and it allowed me more freedom in forming the rock structure.
 
I just finished my second scape that use cement to bond the rock together. I purchased the cement from a local store in Orlando, Top Shelf Aquatics but the before they carried the product I purchased it from macrorocks.com. No water issues and it allowed me more freedom in forming the rock structure.

That's what I thought. I've made block walls and im sure if you use cement your rocks ain't going no where. Just didn't know if it walls reef safe. And a lot cheaper than using puddy that can be expensive...specially if you have a lot of rock you need to secure.
 
That's what I thought. I've made block walls and im sure if you use cement your rocks ain't going no where. Just didn't know if it walls reef safe. And a lot cheaper than using puddy that can be expensive...specially if you have a lot of rock you need to secure.

I believe the components is just Portland cement. Without any other additives. I don't use it for rock walls but as attachments from rock to rock. Giving the rock a easy transition and allowing for some rocks to attach in any direction. I also use the cement to hold rocks vertical so I don't need to drill holes for acrylic rods. It's a provides a stronger base and more versatile rock angles.
 
I believe the components is just Portland cement. Without any other additives. I don't use it for rock walls but as attachments from rock to rock. Giving the rock a easy transition and allowing for some rocks to attach in any direction. I also use the cement to hold rocks vertical so I don't need to drill holes for acrylic rods. It's a provides a stronger base and more versatile rock angles.
That's what I'm planing to use on my 60 gallon cube build. I agree with being able to more versatile with the cement. Thank you for confirming that it is ok to use cement.
 

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