exactly

loads of power heads

i have the ones that rotate with the rudder/ flange thing and the pipe for
air.

put em in just so they disturb the water and you can see air bubbles.

are you running external filters ?

if so drop the outlet / return hose just below the water line so this reacts
with the air.

also use your skimmer, i have live rock under it {slightly out of the water
so the return from the skimmer breaks over the rocks and into the water
loads of bubbles.

try and imagine the tank on plan. plot your inlet/outlets for your external
filters / power heads and skimmer. so that they are all in different places.
imagine that you must get the whole surface water moving, and no areas are
left stagnent.

its easier than you think. you can hide the pickup / return pipes with rock
etc if your worried about looking good. power heads at different levels will
stir the water up also.

hope this helps

scaffman

--
What is this......
Some White C**ts Joke
That Black C**ts Dont Get.
Rory Breaker, Lock Stock & 2 Smoking Barrels
"Dragon Slayer" wrote in message
...
get better gas exchange in it, aim a power head so it breaks the water
surface and causes turbulence on the surface, this helps dramatically.

kc

"Foxhunter" wrote in message
...
Thanks for that. How do you oxygenate your water? I have got all levels
(Nitrite, Nitrate, PH etc) right but oxygen is REALLY low.
Many thanks,
Dave
"Rory Breaker" wrote in message
...
ive been running a trigon 350 90gal corner tank for 15months as
marine.
before that it was in use as a marine tank for nearly 2 years.

never had a prob other than setting it up right.

you are right you will need to ditch some of the standard equipment.
proper lighting yes
proper external filtration {2 fluvals 403/404 1 ehim pro} or drill for
sump
decent uv ster
skimmer

it can work

scaffman



--
What is this......
Some White C**ts Joke
That Black C**ts Dont Get.
Rory Breaker, Lock Stock & 2 Smoking Barrels
"Foxhunter" wrote in message
...
I changed filter to a powerful external canister and lighting was
changed
to
marine spec, plus airstones galore but still low oxygenation?
Should I just give up an stick tropicals in it?
Dave
"Foxhunter" wrote in message
...
Help, first time I have found this newsgroup. I am *TRYING*
unsuccessfully
to set up a Trigon 350 tank for Marine. Despite everything I try,
I
cannot
get the water to a high enough oxygenation level. My dealer now
says
Trigons
are not designed fro Marine? Anyone offer and advice - PLEASE.

Dave