Established, 2 yr old planted 36 gal glass freshwater tank with EcoComplete substrate and Fluval plant light. Couple of large sword plants and several pogo octopus plants. Stocked with 1 large Angel, 6 Cories , 4 otocinclus. Bought same size acrylic tank and need to switch everything over, eventually. I have brand new EcoComplete but can I or should I still use some of the old substrate ? Should I put the old under or over the new ? My plan is to get the new tank going and get a bit of algae built up before moving the Otos over. They are thriving and I don’t want to lose them. Or would there be enough for them eat on the plants themselves to sustain them if I move them sooner? Any advice on making this type of switch would be greatly appreciated. Thanks all !
