I use the Dollar Tree Gel Glue all the time and it really works.Some may hate me for this but here goes...
I just did my very first glued aquascape and I'm rather pleased with results. I went on the recommended glue sites and had my order all set to be placed and then it occurred to me "cyanoacrylate" the Dollar tree down the road sells that stuff. What to lose? So sent my daughter, (poor child) and began my project. I love the Tidal Garden videos, so instructive and he takes his time showing you how to actually do stuff without selling you the bridge. Anyway first thing I learned was don't use the Gel. Buy the runny fast drying stuff. KEY is to create a powder with the crushed sand left from smashing the rocks into smaller usable pieces and toss it at the joint spots then add a few drops of glue. It joins immediately. Almost like Acrylic solvent. It isn't super strong but it holds. Here's my logic. I need to get it from where I'm building to the spot in the tank where it will stay indefinitely. So the most stressful part will be the move and avoiding it to break? Well that worked for me. I built several pieces and put them all together in the tank to appear as one. So far so good. So $12.00 in Dollar Store glue later. This is my result.
that is how I build my scape, and I am not little. But I believe it is because it requires more work to build, as you have to drill holes in the rock to fit your rod. But once done, It wont budge with strong waves, and is easy to remove when neededI can't believe how little people use acrylic rods? You can literally build a solid as hell, dismantlable Lego aquascape without any glue. I plan to make a Pico reef using the Acrylic rod method very soon and will post a Build thread
Oh, I usedI used plenty of adhesive