Okay lately my cichlids have been acting funny. My female JD isnt the same color. she is paler. every one else is great even the GT that was picked on near to death. My JDs use to spawn every month but lately they havent. the only thing i have done is a water change, cleaned the canister filter, added some carcoal and white stuff, then i added some bubble wands that go across the whole back of the tank. are the bubbles messing things up?