Parrot fish are a man made crossbreed. Not much is known about their breed specific ailments yet. Black Spot Disease, Ready to mate, water quality issue, changing color naturally as it matures, The black on your fish could be any one of these. Most of the time one or another of these will produce the markings and will not have an impact on the fishes behavior. You can attempt to medicate the tank if you want, if it is a disease parasite then Maracide would probably work best. It could also clear up on it's own. I would do a water change and test water quality first.
Yes a parrot fish female could turn into a parrot fish male it changes gender and color :}
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All the dirt and fish poo in it.
No, you cannot convoke a creature with summoning sickness during your turn.
abuse, sickness
It can either Mean the lighting is too bright or the water is warm
phone rings but can't get to answer
Yes, summoning sickness can prevent a creature from attacking or using its abilities on the turn it enters the battlefield.
by waving their tail the fish can turn its head
Summoning sickness prevents creatures from attacking or using tap abilities on the turn they enter the battlefield. This means that creatures with summoning sickness cannot use their abilities that require tapping until the next turn.
No, creature abilities do not have summoning sickness. Only creatures themselves have summoning sickness, which prevents them from attacking or using tap abilities the turn they enter the battlefield.
I'm So Sorry But When A Black Moor Turns White It Means It Will Eventually Die Or It's Aged