__________________ My idea of an amusement park story is getting adventurers to go tour environmental disaster areas. After all, if the entire Great Barrier Reef gets killed, which seems like an extremely lively possibility, what are you going to do with all that rotting limestone?
~Bruce Sterling
Another good reason to have it in the sump is that some animals could get burned by getting too close or latching on to the heater. Many creatures that move a bit slower won't be able to react quickly enough.
In addition, I agree with the aesthetics...I prefer to not see too much "equipment" in the display tank.
well, I've heard that it's more effective to have the heater in the sump, since you have a high flow through it. It can react "quicker" to temperature changes, from what I've heard...
the others have covered most, so not much to input on this subject. All im going to say if its in the display, most put it up the back & out of view, now if that out of the way spot is a dead spot current wise you could be in strife. Ive had a glass tank crack on a BB due to heat variations. All be that the most extreme case, to the lesser degree its no keeping all zones constant for your animals. Only places where this occurs is on the drop-offs, current intersecting lines or thermal active areas in the oceans, other than that temp swings are on a more constant gradient where animals find it adaptable.
Now as mentioned, if its in your sump your usually stripping the heat derrectly with an even venting process though-out the tank. Much better logicly.
Im am curious as to why the fuge & not the sump rob? unless the fuge is large & all bit slow but large volume water exchanges.
Im am curious as to why the fuge & not the sump rob? unless the fuge is large & all bit slow but large volume water exchanges.
well veriann, it's actually a very complex and complicated reason.. i would try to explain it in detail but dont have the time, but for you i will give you the brief answer, and thats because i dont have a sump.. . yes, i have a refugium no sump.. so they go in my fuge..
__________________
Show people you appreciate there advice, click the icon under there name and give them Reputation points
Sump also,
and just to add to that I like to place the sensor for the controller in the overflow from the display chamber of the sump and heaters in or near the pick up for the return pump. This way you are measuring the temp in the display and tempering the return water to adjust it accordingly.
oh and why?
same as above I like the look of an equipment free display.
icon under their name to add to their reputation. 
V-series Productions 
. yes, i have a 
im going to blame dial-up about now
