cc and/or ls?

[mdvm]

I presently have a FOWLR tank with cc on the bottom and have been reading alot about ls. So my question is can I mix my exsisting cc and add ls to it? Do the fish have to be removed from the tank while this occures? I realy would prefer not to take out the cc if I dont have to but I'm concerned this may create a problem. I have a 55 gal with 45lbs of lr.

 

[mchandler]

I had a cc bottom and added ls later on...I ended up losing two green chromis. It's a 135G and I had 120lbs of cc, then I just added 40lbs of ls - didnt remove any cc. By the way, It was the BioActive LS stuff (20 and 40lb bags) that you see all over the place.

 

[robb]

I wouldn't mix sand in with your cc. The cc would keep the sand from doing it's job. A DSB works from it's density. I would do a search on the subject. This question has been asked many times so you should be able to dig something up on this site.

 

[mdvm]

Did the cc wind up staying at the bottom or did you mix the 2 together? If I were to remove the cc and add the dsb would I take the fish out?

 

[mdvm]

thanks for the help.