Coral loss after tank upgrade

Goodersgold

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Last weekend I swapped to a larger tank (20g) with new dry aquascape, live sand, fresh water and a bottle of ATM Colony, when up to temp the four fish were transferred (2 clowns, 1 PJ Cardinal and a blenny), they were quiet for a couple of days but are now loving their new home and feeding well. PH is 8.1, Sal 1.026, Temp 26, dKH 9.4 Ca 386 Ammonia 0 and Phos 0.1.
After a couple of days I had to shut down the old tank as I needed the light for the corals in the new tank, my Gold tipped torch was doing great in the old tank with two new branches and lovely fat polyps, now overnight two heads have completely stripped of polyps. My Candy cane is showing signs of fading too, and my GSP is completely closed. I appreciate that the corals do not like to be unsettled, but I had no other choice, do you think they will recover / survive? :angry-face::angry-face:
 

vetteguy53081

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Last weekend I swapped to a larger tank (20g) with new dry aquascape, live sand, fresh water and a bottle of ATM Colony, when up to temp the four fish were transferred (2 clowns, 1 PJ Cardinal and a blenny), they were quiet for a couple of days but are now loving their new home and feeding well. PH is 8.1, Sal 1.026, Temp 26, dKH 9.4 Ca 386 Ammonia 0 and Phos 0.1.
After a couple of days I had to shut down the old tank as I needed the light for the corals in the new tank, my Gold tipped torch was doing great in the old tank with two new branches and lovely fat polyps, now overnight two heads have completely stripped of polyps. My Candy cane is showing signs of fading too, and my GSP is completely closed. I appreciate that the corals do not like to be unsettled, but I had no other choice, do you think they will recover / survive? :angry-face::angry-face:
Likely, the change in water, light and flow
Assure there is some level of phosphate and that you’re not getting false readings as switchover often triggers small spikes until tank has settled
 

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