eheim 2215 questions

[lovemybarbs]

I have had this filter for about four years and I love it. I did maintenance yesterday and decided I needed some new tubes, they are getting very stiff. Can the stuff from the hardware store work? Also, I have the same media since I bought it, except for the filter floss of course. The little rocks seem to be breaking down. Should I replace it. I know there is some good bacteria in there. I don't use carbon, should I run some during the next cycle in between cleanings?

I see there is an oxygen diffuser available. Are they worth it?

TIA!!!!!

 

[lovemybarbs]

I should have put this in the general freshwater forum.

 

[SubRosa]

Eheim tubing is metric, but there are inch equivalents that will work. They may require use of a hose clamp to tighten it, or heat to get it to stretch over a fitting, but it will work.

 

[lovemybarbs]

I'll order the eheim then. I will probably order the oxygen diffuser also. I assume is just replaces the spray bar.

 

[metricliman]

I'll order the eheim then. I will probably order the oxygen diffuser also. I assume is just replaces the spray bar.

IMO the diffuser is a waste of money. It is a venturi valve and the same can be achieved with a powerhead or even airstone. Spraybars are more beneficial (again this is my opinion).

 

[MChambers]

I'll order the eheim then. I will probably order the oxygen diffuser also. I assume is just replaces the spray bar.

I've recently started using the diffusor and like it, but can't tell you that it really improved my tanks. Maybe it does, but only time will tell. Here's a link to an interesting piece on the diffusor:

http://www.fmueller.com/home/aquaristic/125g/technology/aeration/

 

[lovemybarbs]

so perhaps I should get a powerhead and add that. I have a pretty powerful older air pump on a long air wand in there right now that I crank up during the day. Are powerheads typically loud? I might be interested in getting one.