HK 乾燥海洋礁石 ** 20-30 公分 ** 大 (每公斤)

I was a bit worried about mineral release since I keep hard water shrimp, but these rocks actually buffered the pH perfectly and my colony has never looked better. The 20-30cm pieces are massive and create really dramatic caves.

The large 20-30cm size really lets you build a dramatic aquascape in one go, and I love how the rough texture gives shrimp plenty of grazing spots. My hard water tank's mineral levels have stayed steady since adding these, and the pieces are sturdy enough to stack without shifting.

These rocks have a really nice rugged texture that my cichlids love exploring, and the 20-30cm size pieces are perfect for building stable caves. They've been releasing minerals into the water just as described, and my hard water tank is thriving with them.