Secondary external filter for UV filtration

[zaggino]

Hi guys, I have about 450 litre tank and I'd like to setup a good UV sterilization for it. I'm planning to buy Eheim Reeflex UV 800 which recommends about 600L/h flow for proper treatment. The question is, how to get the water into and through it? The UV itself is quite big so it would be hidden under the tank where current external filter is, but I can't connect the external filter to it because the flow is much much higher than desired 600L/h. So my current idea is to buy something like EHEIM eXperience 150 which has flow of 500L/h that would basically act as a secondary filter and as a pump for the UV.

My question is - is it a good/bad idea or can you recommend something better?

 

[fishy5]

Hi guys, I have about 450 litre tank and I'd like to setup a good UV sterilization for it. I'm planning to buy Eheim Reeflex UV 800 which recommends about 600L/h flow for proper treatment. The question is, how to get the water into and through it? The UV itself is quite big so it would be hidden under the tank where current external filter is, but I can't connect the external filter to it because the flow is much much higher than desired 600L/h. So my current idea is to buy something like EHEIM eXperience 150 which has flow of 500L/h that would basically act as a secondary filter and as a pump for the UV.

My question is - is it a good/bad idea or can you recommend something better?

All you need is a pump.

 

[squint]

Don't worry about flow rate. It's more about UV watts vs. tank volume. The Bunsen-Roscoe law of photobiology tells us that several quick passes can be the equivalent of one slow pass. Place the UV after the filter and don't worry about it.