Safe Rocks for Brackish Aquarium

[shine17]

I posted a while back if it was safe for me to place my beach rocks into my 5.5 gallon brackish tank, so my RCC could climb out. Didn't feel comfortable with it...

Now I am going to expand my 5.5 gallon to a 10 gallon and want to provide my RCC and any others in the future with dry areas and caves, etc.

What I wanted to know: are there rocks that are safe to place within my brackish tank? I read somewhere that slate and shale are good (not sure).

I would appreciate it if someone could help me with this.

Thanks!

[Lady Hobbs]

Any rocks should be fine as long as they don't fizzle with the vinegar test.

[Spidyman]

You can get this and have top level or fast fish that can live in brackish water with them i have one and it works just fine but was a little hard to set up but i had to do it in a filled tank. guppies and mollies would be the best option for tank mates but may get eaten if the crabs get the opportunity.
http://www.crabhomes.com/products/1/...r_Islands.html

[shine17]

You can get this and have top level or fast fish that can live in brackish water with them i have one and it works just fine but was a little hard to set up but i had to do it in a filled tank. guppies and mollies would be the best option for tank mates but may get eaten if the crabs get the opportunity.
http://www.crabhomes.com/products/1/...r_Islands.html

Was definitely looking into that [maybe] since I am looking to have fish as well, but I am still interested in providing them [crabs] with a place to climb up.

I love the idea of this underwater crab home. By any chance do you know if a Patriot Crab would be able to use the largest one they have.

[Spidyman]

Sorry I know nothing about that species how big does it get?

[shine17]

Sorry I know nothing about that species how big does it get?

Not sure either but the one I saw is something close to 3" maybe more :?