Purple/Brown air line tubing?

Hello :3

Currently in my Goldfishes tank there are two air stones in there. The top tubing (above the water line) look purple in color. Should I get new tubing? Should I replace it? It works, but I am just asking.
Why is it purple? I looks kinda gross and kinda cool. The filter is gross, but that is what keeps my fish alive and not sick.

Has any one had this issue? Should I be concerned?

Thank you

2013-11-16T02:55:32Z

The tubing is a few moths old. I just wanted to add that just in case.

Sarah2013-11-16T08:01:57Z

Favorite Answer

Purple? Weird. All I can think of is that you've got some goop in there with a little mold, possibly. Do you have a photo?

Your filter shouldn't be "gross". Do you perform weekly maintenance? I clean out the impeller, intake and output weekly. Every 3 months, I give the inside a good rinse with conditioned, clean water. Your filter will not perform properly if it is really gooped up. If you break an impeller, it is pricey to replace.