How do you hold rocks together?
 

Any pics techniques on how to put rocks together?, meaning create big rocks structures and difficult angles using small rocks. How do you glue them together?.

I have thought about drilling holes in them and connect them with something. Any ideas?

I have seen there are some special glue for rock, I have read too than you can drill them and join them with plastic clamps (like the one used to tide computers cables), and I have senn you can form a structure of PVC and join the rocks there.
the last month "tank of the month" has one than an give you an idea.

I've done this several times by drilling holes in the rocks with a masonary bit and then stringing the rocks onto pieces of plastic coat hangers to create impossible structures.

Zip Ties work very well, I would suggest against epoxying rocks together as if you have to move one you are re moving the section and will have to tear down most of the tank.

As long as you stack the rock where it is stabile(like a puzzle so they lock in place) you wont have to do anything to hold the rock together.

do a search. theres a thread with plenty of pics and a video.

I used marcorocks for my newest tank so I had lots of holes to work with, I used zipties to create 3 sections that when placed together look like three arches in my 70g oceanic reaching up to the top... worked very well for me and I didn't have to mess with glue/epoxy etc. coralline covers them up very quickly and you can just epoxy some frags ontop as well to hide them.

But then you have to hide the zip on the back of the rock where it can't ber seen or what?

the zip will be covered on caraline algae in feature, or you can put some frags on them . Remember tank is a long term proyect.

I just stack the rocks so that they look good and are a good fit and wont topple over, a good way of checking is tapping on the top of te rock to see if it falls off

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