Bremenguppie
New member
So I have a 75 gallon tank with about 30 lbs of live rock in an established tank. But I'm pretty sure I should have closer to 75 lbs of live rock to help keep good bacteria going. But live rock is expensive. If I was to put regular larger dry rocks in there. I know they would eventually turn into live rock. But is there some dry rock that works better than others or could I put in pretty much whatever I find.