Freshmike....and anyone else with large rocks

[Sky042]

Last night I finally aquired some large rocks to put in my tank along with the big piece of driftwood. I was wondering for people liek freshmike or anyone else with large rock in their tank. Do you put them in place and try to seal them in som fashion to make sure they stay or do you just try to organize them in a way that a larger fish won't be able to disturb them?

 

[vantgE]

you don't really need to seal them inplace just stack them in a way that they are very stable, if you are worried you can use aquarium safe silicone to attach them toghether but the rock still needs to be stable you cannot relie just on the silicone. for the base rocks i cut eggcrate and placed it on the bottomof the aquarium to help spread the wieght out and then just placed the rocks on top of that, again you could silicone them if you are worried but it is better not to. For my larger base rock that was unstable I siliconed a smaller rock under it to support it. Put the substrate in after the rocks to ensure that the rocks do not depend on the substrate for support incase your fish will undermine them or the substrate moves away. The silicone is best avoided cause it probally will get in your way if you ever have to take out the rocks to clean them or search the tank. I tried to only use the silicone with my smaller rocks.
but most of my rocks are still smaller than Freshmikes

 

[Malt_Vinegar]

Thats my Oscar/Knife fish tank.

Not had them knock over anything yet, i just make sure they are all stacked nicely

That was it before, and again, not one rock fell

 

[smithrc]

the moment one does fall you'll be in trouble though!

I'll be putting blobs of silicon as 'feet' on mine so they dont slip off each other.

just need to find some now...

 

[Fiddlesticks]

I secure my rocks with that aquarium silicone. The stuff they seal the corners with. It works very well. But sometimes my big 10 inc pl*c still manages to knok them over.