No matter what the package says,if you REALLY need this,rinse the HELL outta it!!!! Growing grass turned my tank flat RED! It clogged my filter with slip, like a pottery class! I finally remembered that sand would neutrolize the problem,so off I went,cart in hand,to drag play sand home!It neutralized the damn clay,(and by pouring sand on top, I kept my growing medium) filtered the water,and stopped me from committing Hari Kari over the aquarium!!! BUYER BEWARE!..My tank now looks like Blue Springs,but it was alot of headache,and heart ache !...0;)p
Verified purchase: Yes | Condition: New
great substrate the dust actually makes it better if left in it
Verified purchase: Yes | Condition: New
Just like its saying does all that great for plants shrimp and fish
Verified purchase: Yes | Condition: New
Takes a lot of rinsing but beautiful substrate.
Verified purchase: Yes | Condition: New
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