RE: [AGA Member] Planted Tank Room- Central Filtration

["Nathan Freedenberg" <gnatster@comcast.net>]

Twas Scribed...

Also, how to hook the tanks together: a circulating range system where the 
water flows from tank to tank in a circle or a central sump system where all

tanks overflow into a common sump where the water is added, removed,
injected 
with CO2 and perhaps filtered somewhat?


Creating a circulating range system where water from Tank A overflows to
Tank B, overflowing to Tank C etc etc has one inherent flaw. Tanking 1 tank
offline takes all offline. 

Martin Moe laid out a very simple multiple tank design in "Raising the
Orchid Dotyback" that uses gravity to supply all the tanks.  Water is pumped
from a central sump to a central distribution tank above the specimen tanks.
Each tank is then supplied from this overhead reservoir. Valves on each line
allow flow to be adjusted as needed. Each specimen tank has an adjustable
standpipe that drains back to the lower sump. A standpipe drain in the
overhead reservoir is the safety net, keeping then entire affair from
overflowing. This system has many advantages over the basic lfs system where
many tanks are plumbed directly from a central pump. Adjusting flow into one
tank effects flow into all tanks. 

I've designed a few central systems and have built a few systems at lfs's
that were interesting concepts but poor in the day to day usage. In my last
fish room, used for cichlid grow out, I used Moe's system and found that to
be superior to any other design I've been involved with before. 

gnatster


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