PatO Posted February 12, 2021 Share Posted February 12, 2021 I’m starting my first planted tank on a 20 long. I was planning on adding a Coop medium sponge filter, but do you generally recommend adding a HoB like an AQ30 to help polish the water as well? Thanks. Link to comment Share on other sites More sharing options...
Streetwise Posted February 12, 2021 Share Posted February 12, 2021 The medium sponge filters are bigger than you may think. A pair of nano sponge filters in the back corners of your 20 will be easily hidden by plants. Link to comment Share on other sites More sharing options...
PatO Posted February 12, 2021 Author Share Posted February 12, 2021 So do you think a pair of 20’s will keep the water crystal clean? No need for HOB to polish water? Could a USB nano power two small sponge filters? Link to comment Share on other sites More sharing options...
Koi Posted February 12, 2021 Share Posted February 12, 2021 You can run the usb nano on 2 sponges, you just need a valve on both tubes to balance the pressure. As far as polishing the water, I think a hob is a better suited option(definitely not necessary). You can run both sponge and hob and have your sponge as a bio filter and hob for mechanical. I run filter floss on my hob and replace it every 2 weeks or until it starts affecting the flow on my filter. Link to comment Share on other sites More sharing options...
Garren Posted February 12, 2021 Share Posted February 12, 2021 (edited) 21 minutes ago, PatO said: So do you think a pair of 20’s will keep the water crystal clean? No need for HOB to polish water? Could a USB nano power two small sponge filters? I am running two nano's on one USB pump. Recommend putting control valves so you can even the air flow out to each filter. If you don't one will have more flow then the other one. So far I have not had any issues with water not being clear. Here is a picture of my Nanos in my 20gal. Disregard the red circle, I used this picture to point out something in a different post Edited February 12, 2021 by Garren Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now