Wtf is this

[madjoe]

So i got a life reef reactor and in the box was this but idk what this is lolView attachment 24403

 

[Illinijoe]

Looks like a doublecross!

 

[madjoe]

Looks like a doublecross!

? I should say i got the actual reactor also lol this was in same box it was used stuff so idk if its a add on for the reactor or what lol

 

[Illinijoe]

Lol ok I thought you got that instead of what you bought.

 

[madjoe]

Lol ok I thought you got that instead of what you bought.

Lol no

 

[Irsug1]

What kind of reactor?
I've seen co2 units with 2 separate media chambers.