Leca balls covered with gravel

[john arnold]

Hi all, been a while
So i have a 5ft tank to scape for customer, he wants not me, a wall of lava stone from bottom to top, ,so to support i want to back fill it with gravel which seems like its going to get very heavy so i thought at the bottom part i could use leca balls and then cover that with gravel to save weight, i mean the lava stone alone is going tonbe about 80kg can any one of you lovelies ee a problem with this, i assume they are inert and wont change water chemistry

 

[bazz]

No thoughts on using expanding foam? Expanding foam

 

[dw1305]

Hi all,

so i thought at the bottom part i could use leca balls

They <"tend to float"> and will definitely pop up, through the gravel, via the <"muesli effect">.

cheers Darrel

 

[john arnold]

Hi all,

They tend to float and will definitely pop up, through the gravel, via the "muesli effect".

cheers Darrel

but its not going to be shaken or disturbed as its at the back supporting the rock wall, i wont be planting in it, do you still think they will rise?

 

[john arnold]

No thoughts on using expanding foam? Expanding foam

not really as thats a massive mess if he wants to rescape as its a lot of rock to throw away whenever he does

 

[Maf 2500]

Would it still work for your needs if you put the leca balls in zip mesh bags?

 

[simon_the_plant_nerd]

but its not going to be shaken or disturbed as its at the back supporting the rock wall, i wont be planting in it, do you still think they will rise?

This question largely depends if he plans to put a plec in there or not. My bristle nose will pull everything apart if she feels like it.

 

[G H Nelson]

Lava stone 80kg?

 

[jamiep]

In my 120p I have mesh bags with variously alphagrog and leca under aquasoil to increase flow through the soil and reduce the cost of more soil. In mesh bags though, no way would I not and risk their inevitable popping up