Everything was from the existing tankSorry to hear about the fish loss. So everything in the pool was previously in the tank, ie water, rocks? What about sand? Water was heated? Any chance the plastic of the pool was not reef safe?
I didn’t transfer any sand .
And the only rocks that went into the pool
We’re the ones with corals on them
.
The pool was washed with vinegar and rinsed well before filling. .
But who knows if it was actually reef safe or not

