Pumps that won't add heat to my tank?

[Benjamin Slade]

I'm running a 40 gallon reef tank with no sump, a protein skimmer, and
two Maxijet 900 pumps in the upper left/right back part of the tank
(hanging off the top rim of the tank). You can see the tank on the web
page:

http://www.benslade.com/reef.html

My question is, are there any sort of pumps that I can use to replace
the Maxijets where the heat generating part of the pump is out of the
water? But where I can still mount the pumps in the upper left/right
back of the tank? I'd like to also go with bigger pumps than the
maxijet 900's if possible.

Thanks
Ben Slade
Washington DC
PublicMailbox at benslade dot com
(append 030516 to the subject line to bypass spam filters)

[Rick]

Why dont you run a canister filter? Ehiems have a good output
efficent enough for a 40 gal tank. I had one with my 55 gal used it
along with the life rock

[Billy]

"Rick" > wrote in message
ups.com...
> Why dont you run a canister filter? Ehiems have a good output
> efficent enough for a 40 gal tank. I had one with my 55 gal used
> it
> along with the life rock
>

With the media removed, perhaps. Canister filters CAN work well, but
can create nitrate issues, as well. I, myself, would not use a
canister filter on a reef tank.

billy

[Rick]

Yes thats what they say but from 1st hand experience I never had this
problem I set up a 10 reef tank that had 20lb LS/10lbs LR and a ehiem
along with a backbac kimmer-nitrates never where a problem. I did do
50% monthly water change , which in CA we can buy ocean water for.30
cents a gal from our LFS-maybe thats why I did not have a nitrate
problem

Billy wrote:
> "Rick" > wrote in message
> ups.com...
> > Why dont you run a canister filter? Ehiems have a good output
> > efficent enough for a 40 gal tank. I had one with my 55 gal used
> > it
> > along with the life rock
> >
>
> With the media removed, perhaps. Canister filters CAN work well, but
> can create nitrate issues, as well. I, myself, would not use a
> canister filter on a reef tank.
>
> billy

[Billy]

"Rick" > wrote in message
ups.com...
> Yes thats what they say but from 1st hand experience I never had
> this
> problem I set up a 10 reef tank that had 20lb LS/10lbs LR and a
> ehiem
> along with a backbac kimmer-nitrates never where a problem. I did
> do
> 50% monthly water change , which in CA we can buy ocean water
> for.30
> cents a gal from our LFS-maybe thats why I did not have a nitrate
> problem
>


Aye, a 50% water change would take of any nitrate issue I can think
of. <g>

[Benjamin Slade]

One of the reasons I don't have a sump is for space and leak prevention
reasons. So for those reasons, I'm not really excited about a filter
canister on the floor.

Hmmm, maybe a hang-off-the-back canister filter like:

http://www.aquariumguys.com/magnumfilter2.html

Except I would be using it without the filters, just to move water. I
know thes seems like sort of a silly way to move water around, but if it
keeps the tank cooler, it's useful.

I wonder if the pump in this type of canister filter is water cooled, or
air cooled?

Ben Slade
Washington DC

Rick wrote:
> Why dont you run a canister filter? Ehiems have a good output
> efficent enough for a 40 gal tank. I had one with my 55 gal used it
> along with the life rock
>

[George Patterson]

Benjamin Slade wrote:
>
> I wonder if the pump in this type of canister filter is water cooled, or
> air cooled?

I have one of these that I use for tank cleanup. The motor is a sealed unit at
the bottom of the filter. The impeller is magnetic drive. It'll put about as
much heat into the water as any cannister filter of a similar size.

George Patterson
Why do men's hearts beat faster, knees get weak, throats become dry,
and they think irrationally when a woman wears leather clothing?
Because she smells like a new truck.

[Benjamin Slade]

But the water isn't flowing around the motor, right? Basically the
bottom of the canister filter gets hot, meaning it's transferring heat
to the air, not the water. But probably some of the heat gets
transferred to the water.

Ben in DC

George Patterson wrote:
> Benjamin Slade wrote:
>
>>
>> I wonder if the pump in this type of canister filter is water cooled,
>> or air cooled?
>
>
> I have one of these that I use for tank cleanup. The motor is a sealed
> unit at the bottom of the filter. The impeller is magnetic drive. It'll
> put about as much heat into the water as any cannister filter of a
> similar size.
>
> George Patterson
> Why do men's hearts beat faster, knees get weak, throats become dry,
> and they think irrationally when a woman wears leather clothing?
> Because she smells like a new truck.

[George Patterson]

Benjamin Slade wrote:
> But the water isn't flowing around the motor, right?

Right.

> But probably some of the heat gets
> transferred to the water.

Right again.

George Patterson
If you're going through Hell, keep going.