Eggcrate for rock

[Doug]

But it looks important, sitting there on the glass.

[Aquattro]

Originally Posted by Doug

But it looks important, sitting there on the glass.

Trust me, it's not

[Doug]

Ok. I will just have to build some interesting structures with good support. I have 5 bags of FijiCrete on the way.

[eli@fijireefrock.com]

Not sure if I agree I mean talking about my old setup 180glns display I had egg-crate running where my rock was going to be and I silicone it to the bottom pane then sand then the rock pressed to hit the eggcrate.
Not sure if it did anything but in my mind my rock work was sturdy but still few tumbles only my fault.Although my new setup with using Fijicrete I am sure not going to use any egg-crate and all rocks will be glued in place.

[Snappy]

Eggcrate under sand & rock sounds to me like a recipe for a nitrate build up.

[jonn46]

I have used egg crate under my rock without any problems for years but I am about to set up my 180 and am interested what the alternative is. I have a pistol shrimp and convict blenny, these two guys can completely undermine a large rock in one night.

[Aquattro]

Originally Posted by jonn46

I have used egg crate under my rock without any problems for years but I am about to set up my 180 and am interested what the alternative is. I have a pistol shrimp and convict blenny, these two guys can completely undermine a large rock in one night.

The alternative is not using it. Simply arrange the rock on the glass, add sand around it and nothing can dig underneath.

[Doug]

Originally Posted by Snappy

Eggcrate under sand & rock sounds to me like a recipe for a nitrate build up.

I dont get that one Greg?

[Aquattro]

Originally Posted by Doug

I dont get that one Greg?

I suppose, technically, it could restrict water movement, although I haven't found this to be the case with 2" of sand or less. My NO3 has always been 0.