remember, aquariums are made of glass... I can still see the floor!
Just about all tubing used in aquariums is made from vinyl. Occasionally you will see silicone tubing used in airline applications but it is softer and
Was just at Aquarium Adventures. Multis for $30 per fish! So yeah $20 for 4 that I paid was a bargain. Though the shop says wild, how do I really know
I believe its from constantly having air pushed through it. Maybe its from contact with the pump and the connectors just discoloring it over time.
Doug, do we need to call "Hoarders" on you and the wife? Next on Hoarders... People who hoard fish... You've got to smell it to believe it!