Originally Posted by
hops523
I am going to my lfs in the next couple of days I have a 25 gallon tank, I have a big rock that is about 10 lbs on the right hand side. It really isnt much its just a big piece that is almost square shaped, and I also have little pieces of rock on the other side, but if you add up the little pieces its only 1.5 lbs I think.
That large piece is going to be somewhat difficult to work around in a smaller tank. You may want to consider breaking it up into 2 or 3 smaller pieces. Just a suggestion though, if you like it that way, by all means keep it.
If you do want to break it down you can use a hammer and chisel and just kind of see what happens. If you have an idea of where you would like it to break, you can drill guide holes and just use the chisel in between the holes to finish breaking the rock.
When my live rock came it was approx. 25 lbs and was in two big pieces that wouldn't even have fit into my tank (16 gal. bow front). I used a hammer and chisel to break it up into smaller pieces that were easier to work with. I left one piece rather large and used it in the middle of my tank as a base for everything else. I tried to keep most of the other pieces around 5-7", but did have some smaller pieces that are nice for filling in where a bigger piece won't work.
The first picture is of the two pieces of rock as they came and each piece was on its side in a good size Rubbermaid container. The second picture is of the rock after I broke it down and arranged it in my tank. The pictures are from last year, but at least it gives you a good clear view of the rockwork.