Concrete rubble as base rock? pics..

[Jonnypro]

I just re did my stairs in front of my house and I ripped up some concrete and it looks like it should be nice base rock for my 135g tank. Here are pics. Now can I use this?? I will be cleaning the crap out of it.

 

[czwicky]

You'd have to cure it to avoid ph fluctuations which can take up to 6 months. Better off getting base rock imo

 

[Jonnypro]

You'd have to cure it to avoid ph fluctuations which can take up to 6 months. Better off getting base rock imo

I thought if you make your own rock out of concrete you have to let it cure for about 4-6 weeks. Not with concrete that has been cured for over 10years. Don't get me wrong I would put it in a big bucket with a few power heads for a little while.

 

[AquaRick]

There's no telling what type of phophate and other junk have been absorbed by the concrete. Best to get some new base or live rock.

 

[Jonnypro]

There's no telling what type of phophate and other junk have been absorbed by the concrete. Best to get some new base or live rock.

I found Someone on cl that is parting out a tank and is asking 250 for 100lbs. I'll see if I can get it to 200. Not a bad deal... Or there is this company holeyrock.com, if you send them a pic of what size and what you would like your aqua scape to look like they will piece it together. And it only costs $79.00 per 50 lbs delivered.

 

[Dav3]

Don't use the concrete. As mentioned there is no telling what it has absorbed over the years. Also concrete is really dense. You want rock that is less dense.

 

[mr_X]

I wouldn't use it either. bulk reef supply and marco rocks have some fairly inexpensive dry rock options. Also check ebay.

 

[Jonnypro]

I wouldn't use it either. bulk reef supply and marco rocks have some fairly inexpensive dry rock options. Also check ebay.

I probably have around 75lbs to start with. When I have more money for more rock I will with dry rock. My full spectrum Cree dimmable LEDs just came in today.