This is the first time I used a protein skimmer and it's a Typhoon hang-on back unit as shown below.
http://www.drsfostersmith.com/produ...&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1
Please excuse my ignorance but i've had this unit running for about 3 weeks (was noisy...quited down...now is extremely loud and have a replacement unit coming). Is the lack of foam normal? I really see nothing but water in the skimmer's tube.
http://www.drsfostersmith.com/produ...&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1
Please excuse my ignorance but i've had this unit running for about 3 weeks (was noisy...quited down...now is extremely loud and have a replacement unit coming). Is the lack of foam normal? I really see nothing but water in the skimmer's tube.