which make up the majority by weight of

Recomended air tubes: 5 mm silicone  tube or 6 mm plastic tube

For additional information on alkalinity and other important aspects of marine chemistry for marine aquaria

but not both except as noted on opposite panel when using with organisms that have sustained tissue damage

causing stress to livestock

Boyu Instant Siphon Gravel Cleaner GC-303 24” bacteria which make up the majorityModel GC 303 24 Features Innovative Auto Siphon Pump, Quick & Easy. On off flow control valve. Intergrated gravel fish strainer 6 Tubbing included. Direction Submerge gravel vaccum cleaner inside aquarium. aplace other end of hose into bucket. Open up Flow Control Valve. Move the cylinder up and down rapidly until a siphon is created. Remove fish waste and debris by lowering gravel vaccum on gracel. Adjust Flow control valve as needed for different