Just wondering... on setting up new heaters

[marie]

Originally Posted by daniella3d

your temperature fluctuate too much. Thats 3 degree and I am guessing between day and night. too much.

My temperature stay at 76 day and night. no fluctuation but I use a controller. 82 is quite high.

Have you ever been to the tropics? The water near the beach can get up to 90 and when the tide shifts or a surge of colder water comes up from the depths, the temp can fluctuate 10 degrees.......instantly

[ChefFish]

Originally Posted by The Grizz

Had a few brand new heater that would never shut off & a few that where out by more then 5*. Thinking of trying the Oddyesea Digital or the Fluval E series digital to see if there any better.

I have 2 of the E300's and love them. I haven't had a problem yet and the one in my main tank is only 0.5 different from my thermometer (digital as well).

[gregzz4]

I pre-set/calibrate all my Eheim heaters in a bucket with a trusted thermometer and a powerhead
I set them to 81F just in case the controller leaves them on for some stupid reason, and I set my controller for 79F so the heaters will always come on

[daniella3d]

On personal experience with my own corals. When temperature get that high I see retracted polyps and RTN follow if I keep it that way.

Stressing most animals at 77 F? Some of my stressed corals grow 1" per month. I have quite a few deep water acroporas now, and they don't seem to like hot water at all.

Maybe it depends on the species.

It's funny because you mention one reference, then others will say other things. Temperature is one of the most controversial subject it seem. I keep reading conflicting opinions. I know 82F does not work with my own reef. I put a fan so that when the temp reach 78 it start automatically. I never had RTN since I keep my temperature on the lower side.

If anyone is using this high temperature and it work for them and they never get RTN, then they should surely keep at it. Does not work for me.

Originally Posted by Zoaelite

"The average annual temperature of most coral reefs is around 82 to 84 degrees Fahrenheit (27 to 28 degrees Celsius)(see Table I and Figure 1), which seems to be the optimum for coral growth (Barnes et al. 1995, Clausen and Roth 1975, Weber and White 1976, Coles and Jokiel 1977 and 1978, Highsmith 1979). The commonly advised mini-reef temperatures of 74 to 77 degrees Fahrenheit (22 to 25 degrees Celsius) are stressing most of the animals unnecessarily and, in some cases, severely."

In addition to this natural reefs fluctuate in temperature throughout the day depending on current. Observations between 76-83 are very common, what are you basing your statement on?

[daniella3d]

Here some interesting reading on the subject:


http://www.reefsmagazine.com/forum/r...hris-jury.html

http://www.reefsmagazine.com/forum/r...e-part-ii.html

http://www.reefsmagazine.com/forum/r...-part-iii.html

http://www.reefsmagazine.com/forum/r...e-part-iv.html

[gregzz4]

Originally Posted by daniella3d

Here some interesting reading on the subject:


http://www.reefsmagazine.com/forum/r...hris-jury.html

http://www.reefsmagazine.com/forum/r...e-part-ii.html

http://www.reefsmagazine.com/forum/r...-part-iii.html

http://www.reefsmagazine.com/forum/r...e-part-iv.html

Although this info is very valuable to many reefers ...

The OP was only looking for advice on setting up new Eheim heaters

Let's stay on topic ...

[allie_san]

Originally Posted by gregzz4

I pre-set/calibrate all my Eheim heaters in a bucket with a trusted thermometer and a powerhead

Wish I'd thought of that earlier! Might have to rip my heaters out one at a time and do this. I don't think they're on the same page. Haha

[The Guy]

Originally Posted by Smudge

I have 2 heaters hooked up through my Reefkeeper lite unit. The controller is set to turn on one of the heaters at 78.5 and will turn on the other if it drops to 78. The upper point on the controller is set to 81 in case of a stuck on heater. Keeps my temp solid at 79.

I just ordered Digital Aquatics Reefkeeper lite: Check out the link, this thing does a lot different functions looks pretty good.
http://www.jlaquatics.com/info/400/D...+Monitors.html