Different kind of crushed coral question???

[grubsnaek]

not getting into the back story of it. but plan and simple. with old school style sand beds. many used crushed coral. but you had to vacuum that to keep it clean. well i received a bunch of crushed coral but a bag of it was all rubble size. i will post a pic. i do believe i know the answer already, but just wanna double check. these pieces are large like live rubble rock. so there is no need to vacuum these rite???? just throw them in fuge and be done!?!

i think there big enough that i dont have to vac...

 

[grubsnaek]

its not like this,

 

[florida joe]

Ok these are my thoughts. Although I am an advocate of CC in a DT (yes I am old school). I think if you are looking into substrate for a refug, you should consider sand or mud. My reasons are that sand and or mud will give you a better medium for anaerobic bacteria to grow and a place for higher algae like caulerpa to anchor. Sand sifting critters will keep your sand or mud substraight clean and aerated you will not have much detritus in your refug so vacuuming should not be a concern no matter what you use

 

[grubsnaek]

there will be sand in the DT. its going in a 5.5. im making a mini sump with fuge inside the tank with acrylic sheets. so in the fuge part will be live rubble. either rubble rock or this rubble sized crushed coral and chaeto....so no need for sand cause its in the DT.....hope that made sense