The first time you attach everything seemed to be top, and the effect produced by the diffuser (see video), I liked and also the inhabitants of the aquarium quite well. Since the diffuser but not 100% emanated in the right direction, I wanted to re-adjust slightly, turning the extension piece a bit. During this movement, the headboard slipped (the attachment with the air tube) down and just did not stay no longer up ... even after several attempts, and as a result I had the diffuser again dismount ... The next day I start a trial and then again lo and behold - with skill it works anyway !!
With seeeeehr lot of tact is also creates four (five) different Intenstitätsstufen -> (nothing), very little, little, normal and strong. The noise level at maximum level, I feel personally, however uncomfortable .. (generally this part is rather nothing for an aquarium in the bedroom)
CONCLUSION: If the diffuser is fitted once and stops, so it is a nice addition to's Aquarium. All in all, I find it not bad, ergo, there is of me 3 stars.
