What are these?

[iamfrontosa]

Originally Posted by Kaso78

Thanks. I was worried I was doing something wrong despite my parameters looking right. Can u elaborate on what a pineapple is in this context

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1. Sponges
2. If its Bryopsis, DON'T do manual removal inside the tank. You will make things worst. If it is, I would throw the throw the whole rock away.