Cooler pump than Mag 7 Recommendation?

[banba63]

I started to run my new aquarium (75g w/ overflow) and I am getting a lot of heat from my pumps.

1-Cloused loop.-Velosity T4
2-Protein Skimmer Octopus nw-150.
3-Mag 7 - Return. (In side the Sump)

I am going to replace the T4 for a GEN-X 40.

The temperature at the aquarium place is 88F, and when I turn on the pumps the water
Temperature raised to 98F.

I already put a fan under the canopy for a recommendation and the temperature drop down like 4 to 5F.

I would like a recommendation for a pump that runs cooler than Mag 7 but kipping more or less the flow. (700gph)
Thank you.

 

[GSMguy]

88 is way to hot sounds likeyou need a chiller

 

[King-Kong]

So the water was 88 before you even turned any pumps on? You'd be better off leaving your aquarium OUTSIDE!

 

[Craig Lambert]

What do you mean when you say "The temperature at the aquarium place is 88F"? Is this the temp. in your house???

 

[kdblove_99]

I cannot figure ths out
The temperature at the aquarium place is 88F, and when I turn on the pumps the water
Temperature raised to 98F.

But a Oceanrunner 3500 is very cheap and is a great little pump. no noise and no heat and energy efficient

 

[UCanDoIt]

I don't own a Velocity pump, but I know for sure that your skimmer pump and your Mag7 is producing a lot of heat. When I switched my Mag7 for a Eheim1260, I got more water movement and the tank temp dropped by 2 degrees. On the Octopus skimmer, I saw it tested at my local dealers and the internal water temp after 12 hours on running in a 10% vinegar solution to just clean off the production oils and oils secreted by new acrylic was over 94 degrees... so that Octopus pump is like having a heater stuck on 24/7.

 

[mudhauler]

I love my quiet ones easy to clean and more efficent than the mags and cheaper too

 

[banba63]

Thank you very much Guys, and excuse my big mistake, may be I
am stress for my firs results with my firs fish tank.

The temperature at the tank site was 78F. and with the pumps is 88F. But at lees I was right with the fluctuation.

We set up the A/C at 75F for the house, but I put a thermometer where I place the aquarium, because this place has not too much airflow and is the hotter place in my hose. (3F down)

Now I get from you very good information to make my decision.
I was thinking in the Eheim 1260 because people said that is better but nobody knew if was cooler like now "UCanDoIt" already made this change.
Any way if I know that Oceanrunner 3500, or Quiet ones are cooler than Eheim I will go for it because heat is my really concern.

I got the Octopus recommendation on this forum, like a good one on the cheap range ($160) and I am very happy with it, it work full of foam from bottom to top even I install a valve at the end of the air intake tube because it was dropping out to much clean bubble with the telescopic tube all the way down.
I think is the last thing to change if the heat keep bothering me. Thank you UCanDoIt for the advance.
Thank you Guys.

 

[hooker18]

does it help any to run a mag 7 in-line rather than in-sump? i know they still put off a lot of heat but will this help any?

 

[supertech3]

Are you having the heat issues without your lights on? do you have any glass on the top of your tank, do you have air flow on the sump where you have the mag7?Are you giving us the tank water temps?

 

[hooker18]

well, the question is for a tank i am setting up in about 2 weeks. The tank is a 40 breeder with a 15g fuge, 20g sump, and 20g frag grow out. the display will have two 250w mh on it and the frag grow out will have one 175w mh. there is also a small (18w) PC light i will run on the fuge. i want to run about a 700gph CL and alreeady have a mag 7 i can use in-line but am thinking it may still heat the water.

 

[Mike75]

<a href=showthread.php?s=&postid=9090183#post9090183 target=_blank>Originally posted</a> by hooker18
does it help any to run a mag 7 in-line rather than in-sump? i know they still put off a lot of heat but will this help any?

It would probably help with the heat, but I don't think you'd find too many people that would recommend running a Mag pump externally. They're known for leaking.

I run a Mag 7 in-sump for my Reef Devil, and I don't have any heat issues. My biggest complaint with it, is that it sounds like a blender filled with rocks.

I'll probably replace it with an Eheim eventually. My return is an Eheim run externally, no problems with leaks and it's fairly quiet.

 

[sjm817]

Water cooled pumps transfer most (all)? the heat to the water. Running one external might make a small difference, but these pumps have no cooling fins, no real method of water to air heat exchange.

T4 = 140W
Mag7 = 70W
NW150 38W

These are just the ratings. Actual power draw would need to be measured to get a better idea. The T4 is the biggest problem. Switching to an air cooled external will help a lot. I went from a mag7 to an Eheim 1260 to get a quiet pump. Night and day better and a lot more flow too. I dont know if one was any better that the other in heat transfer, since I didn't have a heat issue. My heaters had to keep the tank @ 78 either way. If I were looking to reduce return pump heat, I would get a pump that uses less wattage like an Eheim 1250, or an OR 2500. Better yet, an air cooled external. The skimmer is rated for 38W. Unless it is using more that that in actual use, I dont think it is adding a substantial amount of heat.

 

[trick440]

I like the Quiet One pumps. The QT3000 is the Mag 7 equivlent and its only 40W.

I have 4 QT3000 on my system, and then a QT3000 & QT1200 for my auto topoff

 

[hooker18]

dr fosters says that the Quiet One pumps can be used in-line anyone use a QT3000 in-line?

 

[banba63]

The Skimmer is NW-150 but the pump is nw-2000.
I already ordered a GEN-X 40 to replace the T4, at lees is 30w less.
If I get a good result with the Gen-x I will try a QT3000.

Sjm817, What pump is an air cooled external pump?

I do not like the idea but at the end maybe I'll need a chiller?

I appreciate your help.
Thank you.

 

[sjm817]

I wouldn't use a Quiet One pump. Too many posts of restart problems. For a submersible, Eheim or Ocean Runner. If you want an air cooled external return pump, I'd use something like a Panworld 40PX or 50PX.

You do know that the Gen-X PCX40 you are getting is not a quiet pump, right?

 

[trick440]

I use 3 of them inline. We also have a ton of power outages and no restart problems, with the 3000.

 

[ChemE]

I ran a reef in South Florida for a year and didn't need to go to a chiller (really didn't want to pay FPL for all the extra kWh's).

The recommendation of an Eheim 1250 for the return pump is a sound one. Your biggest offender is the closed loop pump. If you really want to avoid using a chiller you're going to want to consider using a more efficient means of water circulation like a Tunze Stream or a Maxi-Stream mod (my Maxi-Stream 600 is all the flow my 55 can handle and uses 6 watts!). Switching out the OTP2000 for a cooler running pump like an Aquabee will help some but to really cut skimmer heat issues I DIY'ed a CC airstone skimmer. An air pump adds zero heat (ok maybe the turbulence heats the water some but it is academic at best) to the tank. Finally, to avoid the chiller I ran a fan in my canopy which blew across the surface of my tank. Evaporative heat loss is an extremely effective manner of cooling a reef tank. Hope all this helps.

 

[sjm817]

<a href=showthread.php?s=&postid=9102848#post9102848 target=_blank>Originally posted</a> by trick440
I use 3 of them inline. We also have a ton of power outages and no restart problems, with the 3000.

Not everyone has the problems, but there are also many posts of people who do. Just like not every RIO pump owner has had it blow up on them. There are lots of good pumps that have no restart problems. No reason to risk it.