Anyone use diy overflow from diy king

[Oaktree15]

The diy King made a dump/overflow diy and I was wondering what sponges I could use for biological filter see in picture what I found at dollar store, not sure if it's the same as pot scubbies( the round ones)

 

[puckett26]

Its these you want to use.

http://www.amazon.com/Dozen-Round-S...&qid=1461314722&sr=8-2&keywords=pot+scrubbers

But I would advice against those. My first try into reef tanks a few years ago, I tried these with limited success. While it can allow you to get into the hobby a little cheaper, the can still break siphon and they are ugly. Just my 2 cents tho.

 

[Oaktree15]

A few years ago? How many years? Things do update, I'm not saying it won't fail but there's a really good chance it won't from the new and improved way he makes it from today's era

 

[Oaktree15]

A few years ago? How many years? Things do update, I'm not saying it won't fail but there's a really good chance it won't from the new and improved way he makes it from today's era. .69 each!!!! Damn, I gotta find these somewhere else

 

[CStrickland]

You don't need sponges for filtration, and they often make nutrient issues worse because they trap detritus and culture bacteria in an area where the water is flowing too quickly. With that high flow there is too much oxygen for denitrifying bacteria to grow, so you don't get a complete nitrogen cycle. Waste is only processed into nitrates, but not all the way to nitrous oxide gas. When the nitrates stay in the system, they fuel algae and irritate inverts. If you skip the sponges the bacteria will grow on other surfaces in the tank where all the bacteria can live so you have a full biofilter instead of a partial one.

If you do decide to use the sponges make sure they are not treated with antimicrobial stuff. A lot of sponges are, to keep from getting smelly over time. That will interfere wil biofiltration.