aquarium help... Please

[rollingthunder 10+ year member]

Never knew so many MFKers on here. OP, you are having a bacterial bloom, let it do its thing, you disrupted the bacteria in your gravel when you changed it.

 

[DBfan187 5,000+ posts]

You should have rinsed the dust off the sand before you put it in the tank.

 

[cotjones 10+ year member]

You filthy MFKers!