Urgent help needed!!!

Randy Holmes-Farley · 2026-08-14T17:59:46-0400

What type of sand?

Genvid · 2026-08-14T18:06:29-0400

Randy Holmes-Farley said:
What type of sand?

CaribSea Special Grade Arag-Alive and 10 kg of live sand from Tampa Bay

Randy Holmes-Farley · 2026-08-14T18:21:42-0400

Ok, I’m not seeing where the alk is coming from. Either the rock or mud would be a guess, but others have used those without issue. But some rock sources and some sand sources (the mud looks like sand) have seen substantial alk released from them,

Did you see the packaging of the rock to know it was not a different brand? Some folks had problems with an Aquaforest rock product.

Genvid · 2026-08-14T18:37:46-0400

Randy Holmes-Farley said:
Ok, I’m not seeing where the alk is coming from. Either the rock or mud would be a guess, but others have used those without issue. But some rock sources and some sand sources (the mud looks like sand) have seen substantial alk released from them,

Did you see the packaging of the rock to know it was not a different brand? Some folks had problems with an Aquaforest rock product.

For the previous three years, there hadn't been any issues with this rock. I had completely forgotten that, after every water change, I used to add BIOReef-Snow from Modern Reef.