Ray Filtration Question

  • We are currently upgrading MFK. thanks! -neo
DB junkie;2560603; said:
I still don't understand how submerged can have 10 times the surface area of a wet dry. Can we have some elaboration on this? I'm not partial to one way over the other, but 10 times is a significant advantage that I'd really like to be able to understand and justify.

Nic, help us understand...

Ditto...Nic?
 
you can fit alot more bags of media in the same area... use a product like eheim substrate pro and your set... spiroax http://www.aquaticeco.com/subcategories/473/Siporax

you can fit alot more media in the same area... do the set up right and you can get denitrification out of it as well
 
tell me what more i need to explain...
 
OK so 100 pot scrubbies submerged isn't 10 times the filtration of 100 in a wet dry, it's just that you can cram the submerged more efficiently in the container you're using as the sump........

As far as media.... I think I'll stick to the scrubbies for now. I allready have them and will NOT run me $100+/ gallon.

The other advantage of submerged is that it is possible to grow bacteria that thrive on Nitrate which is NOT possible in a wet/dry?

Is this correct? Or does that ONLY hold true if you're using that fancy bio media?

Not questioning...... Just trying to understand.
 
I'm not sure about ten times, but submerged media will have 100% of the surface area in contact with the water. Towers and wet/dry will have dry spots on the media that aren't growing bacteria.

I like to use bio ball/bio barrel filled towers for degas or for larger systems that don't get a lot of surface variation for gas exhange. For smaller systems, I like submerged media: live rock, badges of gravel/crushed rock, bioballs etc....
 
i know a ray keeper that had a cellpore slab about the size of a cement block in his sump had 1200 gal pond and said it was plenty suficiant. this pond was full of rays too. i am leaning toward a bead filter but i am not certin yet.
 
So is everyone in agreement that submerged is better than a wet/dry?

I will be re-doing my pond over New Years so if this is indeed true I guess I need to plan on a new sump.
 
If I am understanding everything correctly, A submerged filtration is just that the media is fully
underwater with the water being pulled through the media and being pumped back into system.
Similar to a canister, but in a sump setup, open environment (for more oxygenation)
and a much larger construct. Correct?
 
I personally believe that submerged filter medias give better result due to 100% contact surface. Wet / dry has really good for aerobic bacterias but lacking on anaerobic requirements while submerged medias work on both aerobic and anaerobic as well.
 
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