sorry to hear
i don't think todd has ever had any problems with his flower... we have rely good water here though. maybe he will chime in.
All good here-no probs to mention:}
Tanks are very stable,drip rate not touched for some time....
(Nitrate-20-35,PH 7.4-7.6,TDS-162 (122 @ tap)
Diet: Massivore,H2O wafers,Shrimp (cooked & uncooked),Talapia,Earthworms (every other month)