Yup , I get asked a lot how much rock do you need 1 lb per gallon , 2 lbs per gallon ......actually really not much , you'd probably need more than the ratio to actually build something and mount corals compared to what you need to just work lol
We QT all our fish all last summer when we tore down the bonsai , 5 maybe 7 lbs of rock swapped out every week kept over a dozen fish incuding tangs alive , no sand no skimmer etc. Just that little bit if rock, an air stone and powerhead and a heater or two....the bare basics and did beautifully
