My friend just got a new betta after their old one died. They bleached the tank and let it thoroughly dry. They used bottled water since they have hard water like us. The water was at room temp. The tank they had was small enough that they could not set the old container in the new tank to acclimate the betta, so they just scooped the fish into the tank. The blue betta is now looking red. Will the fish adapt ok? They are concerned they killed it.