Hello all. So....this is something I have been wanting to do a while now. I have a 300 liter mixed reef tank with really big pieces of live rock which I feel both hinder flow, look too massive and I would like to redo this. Last time I tried ended in near disaster with all fish nearly dying. I have a few lps and fish, including a blue tang and a mandarin. Also live sand. The tank has been up and running for three years, no sump, a skimmer with filter floss and carbon. I have a spare 120 liter tank. So....i was thinking of setting up the spare tank with skimmer, heater, some water from the existing tank and topping up with fresh salt water and adding some pieces of the existing live rock from the dt. Then after checking parameters, move everything to the spare tank. add some sand and rock from the 300 liter tank so that diamond goby and mandarin are ok. Then empty most of the water out of dt and start re aquascaping. So I would not put fish and corals in danger like last time, with rocks toppling over and nasty things released from sand substrate. Take my time getting the rocks how I like, then moving everything back again. What do you think? Any problems or things that could go wrong ? Anything I should be thinking about? Tips? Dangers?
