plecostomus-mad
Fish Addict
as the title states 
mark
mark
i have someThey make aquarium silicone.
-FHM
sweet![]()
Yes, cement should be just fine to use.
-FHM
thanks for the link but thats not really the look im looking for.lol, besides all those rocks he used would actually be heavier than what i intend to build.lolwould it not be to heavy for the glass?!, i wouldn't use it personally. There are better things out there for making backgrounds.
http/www.fishforums.net/index.php?/topic/321741-rear-rock-wall-with-caves/
^^check this out.
got it in oneits not heavy, the guy who built that background in that you tube clip made it from polystyrene, not cement.
you make a background however you want out of sticking rock shaped lumps of polystyrene to a sheet of polystyrene, when you have it the desired shape/design you mix a very watery mixture of cement and coat the lot, you have to put on quite a few coats until it is solid, leaving it to dry properly between each layer, then its still not ready as you can't just dump bare cement in your tank, you have to seal it, you can do this with pond paint, obviously you choose which colour you want, but you will have to cover it all to make sure no bare cement is exposed. the structure wouldn't be heavy in the slightest, the only thing is it would have to be siliconed to the back of your tank, something im not keen on, and whilst building it you would have to take into consideration your filters/inlets/outlets etc.
will do buddy, id like to see yours as it is now and afterIf you dont seal it, people recommend that you fill and empty the tank completely 10 times to get the PH back down as the cemement will cause a spike. Im half done the exact 3D background you posted a video of above. All I have left on mine is to cement mine and Im just adding cement colouring instead of sealing it with something.
Good luck with the project and lets see some pics after!
Kyle