Hello every members of MFK forum. My fisrt post here. Hope you guys enjoy it!
And I have a small question want to ask you guys. Someone told me if I keep Black diamond rays in black tanks, the ray's spots will become smaller, their spots can not grow bigger in black tank, true or not? Thank you
Sorry for my bad English

And I have a small question want to ask you guys. Someone told me if I keep Black diamond rays in black tanks, the ray's spots will become smaller, their spots can not grow bigger in black tank, true or not? Thank you
Sorry for my bad English

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