UV light and fuge?

d-dzel

Member
I have a MR400 sump that I want to turn part of it into a fuge. The water comes down from the tank, into the first chamber where there's a sock filter, a skimmer and a reactor. The second chamber is what I want to make into a fuge, then the third chamber would be empty. The return pump is an external one and before returning it to the main tank it goes through a UV. I'm currently running a hob fuge.
Now here is the main question:
Would the UV kill and of the pods or any of the good stuff that comes out from my fuge into the main tank? I've been using the UV for a while now and it's been great so far so I want to try and keep it running.
 

novahobbies

Well-Known Member
The UV will definitely kill the pods. I've heard of some people plumbing a UV in to the first chamber of their sump/fuge system. This reduces the effectiveness of the UV, but the pod death toll is also reduced. I don't run UV with my system, but I'm considering it for the FOWLR tank thats next on the list.....
 
A

abeandlulu

Guest
If your water travels though the UV before it returns to the tank it will kill the pods???
. I have a fuge on my tank, before the water returns to the tank it goes thought a chiller/ UV sterillizer, then goes back to the tank.
. It is a chiller/heater/uvsterillizer all in one.(TECO chiller).
 

stanlalee

Active Member
totally dependent on the size of the UV and flow rate of the return. anything under 40watts isn't going to do a thing under typical return flow rates against pods (and I can vouge first hand as I had a 25w UV inline of a 600gph return pump directly after a cheato fuge with unlimited pods all over.
here are the guidelines for UV's effectivenss on parasite/protozoa/microfauna
18w requires a flow rate of 100gph or less
25w requires a flow rate of 150gph or less
40w requires a flow rate of 300gph or less
flow rates higher than these are only effective against algae and bacteria.
 

d-dzel

Member
Originally Posted by Stanlalee
http:///forum/post/3116867
totally dependent on the size of the UV and flow rate of the return. anything under 40watts isn't going to do a thing under typical return flow rates against pods (and I can vouge first hand as I had a 25w UV inline of a 600gph return pump directly after a cheato fuge with unlimited pods all over.
here are the guidelines for UV's effectivenss on parasite/protozoa/microfauna
18w requires a flow rate of 100gph or less
25w requires a flow rate of 150gph or less
40w requires a flow rate of 300gph or less
flow rates higher than these are only effective against algae and bacteria.
Mine is a 25w and for return I have a 800ghp I believe, so that wouldn't affect at all my pods of fauna coming out of the sump?
 

stanlalee

Active Member
Originally Posted by D-Dzel
http:///forum/post/3118891
Mine is a 25w and for return I have a 800ghp I believe, so that wouldn't affect at all my pods of fauna coming out of the sump?
wont do a thing. not enough exposure time for the wattage.
 
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