waste

I dont know it's normal but how do I take this off my inside of filter

Hello my tank is about 1.5 yrs old, im having a green hair algae problem but its only growing on one piece of my rockscape, im aware there are fish and inverts that will help remove it and general maintenance will help as well but im looking for help on understanding why this is occurring? Its a...

There's plenty of garbage in this hobby that somehow people get suckered into buying... what are your favorite ridiculous/scammy reefing products? Ill start off with my all-time favorite: The Tunze 5002.250 'Osmolator Reservoir'... $38.00 Ideal for Top-off Reservoir Large Opening for Easy...