250g Maintenance Free (sorta)

Blub Blub

Feeder Fish
MFK Member
May 25, 2006
224
1
0
Virginia
Cool setup, and thread.

Is the purpose of the reverse flow under-gravel to reduce crap in the substrate, or utilize the substrate as a bio-filter?
 

mccreads56

Feeder Fish
MFK Member
Apr 27, 2007
7
0
1
Toronto, ON
that undergravel system is awesome, do you find it does what you wanted to. i'm considering doing something similar in my tank when it gets moved into my new place, but i'm curious to know if the work i'll put into it will give me the results i'm looking for?
 

CHOMPERS

Silver Tier VIP
MFK Member
Apr 28, 2006
6,439
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Sunnyvale Trailer Park
Yep, so far no complaints from me or my fish. I expected to have some dead spots, but so far none have shown themselves.
 

CHOMPERS

Silver Tier VIP
MFK Member
Apr 28, 2006
6,439
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Sunnyvale Trailer Park
Time for an update. It was brought to my attention that I forgot to add the details of my stand pipe. Since the tank is bottom drilled, it meant my plumbing would have to be inside the tank. I am ok with it because I would rather have the tank flush against the wall. I experimented with different types of stand pipes and found that I got the best results from the simplest solution.

Noise was the biggest issue since the water dropped down 25 inches to the bottom of the stand pipe. It also gurgled and sucked air constantly. The obvious solution was to slow the water down and provide a sound barrier at the top of the pipe.

This is a view from the front view panel of the tank. The white stick across the inlet is a pen with the guts removed.
 

CHOMPERS

Silver Tier VIP
MFK Member
Apr 28, 2006
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Sunnyvale Trailer Park
And here is a view from above. The flow is not obstructed as it seems in the above picture.

 

CHOMPERS

Silver Tier VIP
MFK Member
Apr 28, 2006
6,439
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Sunnyvale Trailer Park
Here is the star of the show. It is the netting, tied in the center with heavy fishing line to the pen shaft. I figured it would be on my regular list of things to clean, but the rushing water takes care of it. If anything large goes down the stand pipe, the netting just moves out of the way.

On my other system with three stacked tanks, I have a vertical drop of 46 inches. It is a 1.5 inch pipe with 1.5 inch bio-balls inside. It is also quiet, but the bio-balls do not move out of the way when something large goes down the shute.

 

Dr Joe

Feeder Fish
MFK Member
Mar 8, 2006
10,664
9
0
72
Sixty Miles South of Tampa Florida
:thumbsup: :thumbsup: You invented a wet muffler :thumbsup: :thumbsup:

(well, mabe not invented, but amazed everyone here!)

Use should go to school and become an engineer...just remember it was my idea when you graduate, so I get to blow the whistle and ring the bell too.:ROFL:

Great work.

This should help some other people too.

Dr Joe

.
 

Nic

Peacock Bass
MFK Member
Oct 8, 2005
15,790
14
119
outside philly
nice set up
 
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