If the red cherry shrimp is flipping up into the water then floating back down and looking as if it were dead.....then that is not normal. That shrimp
If it is fin rot, larger and frequent water changes can't hurt. IME, fin rot does not come on that quickly unless a lot of physical damage is going on
It's funny, I keep giving my family reasons why fish are better than dogs and cats . . . guess that qualifies.
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Just noticed we forgot to add Pickup & Shipping Available in 28409 to the title.
Moderators, please add the information to the title