Question about Bio Pellets / sulfur denitrator

[reef fish]

Question about Bio Pellets / sulfur denitrator
are they the same should i have one or the other or both ????

 

[Troylee]

There different... I would suggest doing a little research on the pellets before jumping in.... Are you experiencing high nitrates???

 

[reef fish]

is new tank that am putting up but i want to have lots of fish and coral