Sump Question

au mister

Member
Does anyone know how to turn your biocube into a sump for a larger tank. I have a 29g biocube and i was wondering when i upgraded to a larger tank if i could use my cube for the sump?
 

deejeff442

Active Member
is it going to be just a sump or a fuge?
if it is just a sump just put everything in it -pump,heaters,etc
i would use a hang on skimmer with it
if its going to be a fuge then seeing its tall i would add a tote as a sump and the cube as the fuge and put them together with a bulkhead
hope this helps
 

florida joe

Well-Known Member
Originally Posted by deejeff442
http:///forum/post/2912489
is it going to be just a sump or a fuge?
if it is just a sump just put everything in it -pump,heaters,etc
i would use a hang on skimmer with it
if its going to be a fuge then seeing its tall i would add a tote as a sump and the cube as the fuge and put them together with a bulkhead
hope this helps
I personally would not put my heater in my sump; the water there is always going to be a little warmer then the DT. Due to the heat generated by your pumps
 

ilovemytank

Member
Originally Posted by florida joe
http:///forum/post/2912661
I personally would not put my heater in my sump; the water there is always going to be a little warmer then the DT. Due to the heat generated by your pumps
Then where would you put your heater ? ( assuming you have the need for one in Florida )
 

deejeff442

Active Member
whats the difference if the pumps add heat ?
your taking the temp of the dt anyway
just adjust the heater untill the dt is at temp
 

florida joe

Well-Known Member
Originally Posted by deejeff442
http:///forum/post/2913670
whats the difference if the pumps add heat ?
your taking the temp of the dt anyway
just adjust the heater untill the dt is at temp
You have obviously proven me wrong. BUT what if my main concern (as I am sure is yours) was fluctuation. I have my tank set up and the temp is 78 degrees. That temperature is due to many factors. Ambient house temp, tank lights, and heat generating pumps. I set my heater to go off at 78 degrees. At night when my tank lights go off as well as the ambient temperature of my home lowers, the temperature in my tank will also lower. The water in my sump will continue to receive heat generated from my sump pump and protein skimmer pump (if installed in the sump) thus maintaining a constant temperature longer Its is my believe that there will be a quicker and greater fluctuation in my DT before one accurse in my sump and triggers my heater to turn on. IMO installing the heater in my DT will deal with the drop in temperature faster and with less fluctuation
 

deejeff442

Active Member
my temp moves up and down within 77-79 over the day
i have two 400 watt heaters in my sump
if the main pump is flowing at least 10 times or more it wont matter where the
heaters are
i could see if the tank turns 3-5 times an hour to have a hot spot but no sw tank should turn that slow
 

florida joe

Well-Known Member
Well my friend I think we will always disagree on this subject (and that is not a bad thing) another reason I like to have the heaters in the tank and not in the sump is that you can put two heaters such as you have in the water flow, such as the outlet from the filter, or in the stream of a power head at oppisite ends of the tank. Having water flowing directly past the heaters more quickly and evenly disperses heated water throughout the tank. In your sump the heated water has to pass through your return pump through your pipe work and out your effluent. And if you are using a protein skimmer some of the heated water heated water is being recalculated back into your sump and perhaps giving your heater a false reading
 

ilovemytank

Member
Originally Posted by florida joe
http:///forum/post/2913971
Well my friend I think we will always disagree on this subject (and that is not a bad thing) another reason I like to have the heaters in the tank and not in the sump is that you can put two heaters such as you have in the water flow, such as the outlet from the filter, or in the stream of a power head at oppisite ends of the tank. Having water flowing directly past the heaters more quickly and evenly disperses heated water throughout the tank. In your sump the heated water has to pass through your return pump through your pipe work and out your effluent. And if you are using a protein skimmer some of the heated water heated water is being recalculated back into your sump and perhaps giving your heater a false reading
I agree on all points, but personal opinion is in the sump. I don't want to see anything in DT but the natural beauty.
 

deejeff442

Active Member
tell ya what i have two digital thermometers
i will put one in the sump and i have one in the tank
see what is up
scientific experiment if you will.
i will let you know what the readings are.
i am willing to be wrong once in a while.
 

florida joe

Well-Known Member
Originally Posted by deejeff442
http:///forum/post/2914122
tell ya what i have two digital thermometers
i will put one in the sump and i have one in the tank
see what is up
scientific experiment if you will.
i will let you know what the readings are.
i am willing to be wrong once in a while.

[/i am willing to be wrong once in a while.
Now my friend that is very nice of you
 

deejeff442

Active Member
well i have two coralife temp gauges
i put the gauge in the fuge for an hour then the pump section for an hour
dt 78.8
fuge 78.2
pump 78.4
what do you think of that?
 

florida joe

Well-Known Member
Originally Posted by deejeff442
http:///forum/post/2914345
well i have two coralife temp gauges
i put the gauge in the fuge for an hour then the pump section for an hour
dt 78.8
fuge 78.2
pump 78.4
what do you think of that?
I think that is great. What is the ambit temperature of your home ? What is the temperature your heaters are set at? What was the drop in temperature that triggered them ? How long did it take for you tank to get bact to normal temperature? Were your lights on when you took the temperature?
my heaters never come on yet I stay at one to one in a half degree Variance. What do you think of that. I mean this is a scientific experiment if you will
 

deejeff442

Active Member
house is at 68 degrees
not sure what the heaters are set at havnt looked
my light dont affect the tank it is a sealed unit with two fans i havent noticed a temp differenc with the lights
not sure what you mean by drop in temp or back to normal ,normal is where it always is?
i still say if your tank is turning 10 times or more it dont matter where the heaters are.
 

florida joe

Well-Known Member
So your ambient temperature is 68F. Your tank temp is 78.8 f. something is causing the rise in your DT temperature. You do not believe that you are getting any radiated heat from your lights. I think the next step in this scientific experiment is to see at what temperature your heaters are activated don’t you think. If we take the heaters out of your equation then all the heat is coming from your pumps am I right
 

deejeff442

Active Member
of coarse the pump is making a little heat making the heater to work less.
the whole point is you said the sump with the heaters and pump is warmer than the dt.
it is not i have shown this
so lets look at it this way the pump is just another heater
the dt and sump is practicly the same temp
showing the heaters in the dt dont regulate temp at all different.
 
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