Are Hang on Back filters sufficient?

[Jaap]

Hello,

Are hank on back filters good? I mean if I have a 40L tank and I use a HOB filter that is 450 L/h will this satisfy my distribution needs or are they not preferable?

Thanks

 

[EnderUK]

for low tech tanks HOBs are great as the outlet provides as high gas exchange. I have a 200L/h one in my 28L nano and it provides nice steady circulation all over the tank. They'll probably do for a hightech tank as well, better than an internal maybe not as good as a canister. The biggest pro they have over canister filters is probably cost.

 

[Jaap]

Sorry I forgot to mention that it was intended for a high tech tank....

 

[Humbert]

Hi
if you are injecting CO2, the extra aeration provided by a HOB filter might not be a good idea as it will drive CO2 out of the water at a higher rate

eheim has some very nice external filters for nano tanks, some chinese manufacturers as well

 

[Alastair]

Hi

The eheim liberty filters are great as don't break water surface like others unless. Your water level drops. Good flow too on the 2042

Sent from my D6503 using Tapatalk 2

 

[Martin in Holland]

I have a HOB on my 40 liter tank ( http://www.ukaps.org/forum/threads/dong-hu-gorge.29582/page-2 ) and it does the job ...I modified it a bit by taking out the filters which come with it and just put some floss where the water comes into the filter and put some noodles on the bottom.

 

[Claire]

Look out for second hand filters too on ebay or gumtree or whatever. Can get a good external at a fraction of new price if you keep your eyes peeled.