Tossing my hat into the OHF Ring.

[nfored]

Two Quiteone 2200 @ 2'ft head. Guessing 850GPH combined output after plumbing

Bonded mat, Polly fill.

BioMatrix, Lava Rocks.

I had to suspend the filter over the tank, as I didn't want to add any wight to the the top of the tank. I knew it would be heavy and I debated a long time before deciding on how to tie it. I decided to use speaker wire, because it would be strong, and its encased in a rubber housing.

The spray bars are mad by cutting slices in the pvc, I thought this would give even flow, bot most of the water goes out the sides of the slits leaving only low flow through the center of the slits.

I also put plexi on the sides of the drawer to keep splashing water in the filter and off the floor.

The bottom of the draw is drilled like a drip plat, with much larger emergency holes on the side about half way up; this way if it gets clogged it will over flow through these holes back into the tank. I have thought about notching the top section on the sides in case the emergency holes clog.

The only thing I don't like about OHF is the lack of ability to place heaters in the filter, and the lack of ability to maintain constant tank level during evaporation. However with that said it safer then my sump was, and takes up less space.

 

[Just Toby]

Sorry to be negative bit it looks like you have massive flow though a small amount of biological media, with all that flow why not add more filter area /bio media.

I would forget speaker wire and go and buy some chain too.

 

[nfored]

Sorry to be negative bit it looks like you have massive flow though a small amount of biological media, with all that flow why not add more filter area /bio media.

I would forget speaker wire and go and buy some chain too.

This is the same amount of media that I have been running on this tank for about 2 years. There is enough media to support the bacteria. One of the reasons I have the draw this size is so that there would be a consent amount of water in the draw at all times. Giving me both submerged media and wet dry media.

Do you mind elaborating more on why you think I should either add more bio media or why I should have a larger area? I am no locked into anything so I am interested in your thought process here so I can understand better.

As far as chain I was worried about the water coming in contact with it causing pollution.

 

[fhawk362]

I think he means because with that amount of flow it may not be the best environment for bacterial growth, biological filtration does better with a lower flow, not sure how much of a difference it makes exactly though.

 

[nfored]

Ah I see, I always thought it was the other way around faster for bio slower for mech. I have actually been contemplating setting up a canister simply for mech.

 

[nfored]

okay so i dumped the draw.

Got 18 Gallon tub, drilled the bottom and put a stand pipe on the bottom. SO now the media is submerged, and I could finally place the heaters in the filter. I am worried about the extra weight so I will be upgrading to steal cable to kept is suspended the speaker wire is struggling now to hold the weight.

The only problem is the tub is taller, so its very hard to to see into the filter. which means I likely wont use filter socks as its just to hard to get into it to change the mech filter each day.

Also since it has a lid its much quieter, but since the stand pipe dumps into the tank, it creates a large amount of bubbles. I wish that I could raise it high enough that the stand pipe would not touch the water so it would not create the bubbles.

Any ideas how to fix the bubble situation?