Egg Crate Under Rockwork ?

[DiverDude]

I've hear it suggested to put egg crate under your rockwork to remove point stresses and help with circulation.

Anyone do this ?

Makes sense to me and can't hurt but I have a bulldozer shrimp & Goby and I worry that it might impede them a bit.

Thoughts ?

[Aquattro]

I've laid egg crate where my rocks will sit and filled over with sand. Then I'll add rocks and add sand around them.

[PoonTang]

Originally Posted by Aquattro

I've laid egg crate where my rocks will sit and filled over with sand. Then I'll add rocks and add sand around them.

+1

[Jfish]

I have eggcrate in the bottom of my tank. I covered it with a couple inches of sand and haven't seen it since.

[Milad]

i have eggcrate and i covered it with about 1.5in sand all around
the high flow areas started to show the eggcrate but now that its about 7 months in, i started moving around the sand just enough to cover the eggcrate and its starting to stick better.

[hillbillyreefer]

I've got three tanks with, one without. One with has only about 1" of sand and sometimes the egg crate is exposed by the flow, looks terrible. One has about 3" of sand I've never seen the egg crate in the tank, I like it. One just has the rock sitting in the EC no sand. It doesn't look very good, I thought it would cover over in coraline, but hasn't in 2 years. It is also a pain to syphon detritus out of at water change time. The BB is great for syphoning at water change time, out of the two without sand I like it the best.

A long story short, if you are going BB don't use egg crate, if your going to use sand then use it, IMHO.

[mike31154]

I cut some large diameter ABS pipe into sections to support several large pieces of live rock. Drilled random holes in the sides for circulation. I should have siliconed them on to the bottom glass though, since they've shifted a bit on me while I was messing around rearranging stuff. Next time I start up a tank, I'll likely do the same or just cut semicircular sections as shown in the photo below. By using sections of ABS like this, you have more flexibility as to placement and the entire bottom doesn't have to be covered as when you use eggcrate, allowing for better access and circulation. Another advantage is you can customize the height and profile of the ABS pieces to better suit the shape of a particular rock.

[daniella3d]

Yes I done this before putting my sans and liverock and completely covered the botton of my aquarium with one sheet of it. It help spread the weight and also help anchor the liverock so if a fish dig underneat it will help to maintain the integrity of the structure. It would also help of some rock fall on the bottom to avoid shock and breaking the bottom of the tank.

Originally Posted by DiverDude

I've hear it suggested to put egg crate under your rockwork to remove point stresses and help with circulation.

Anyone do this ?

Makes sense to me and can't hurt but I have a bulldozer shrimp & Goby and I worry that it might impede them a bit.

Thoughts ?