jbj 28g biocube

acbaro · 08/26/2012, 04:09 PM

So my sister just bought a bio cube and has had it setup for about 2 weeks now. She purchased a 100w heater and a digital thermometer. I been monitoring the thermometer and its been steady around 84 degrees. i dont understand why, i even have her thermometer turned all the way down so i doubt that is the problem. now it does seem to be pretty warm where the PC's are but i dont understand why if the fans are constantly running while the lights are one. Anything we can do to bring the temp down?

ryeguyy84 · 08/26/2012, 04:50 PM

Is the heater stuck on? Assuming the heater has a temp setting, what is it set to? Is it only hot when the lights are on?

ryeguyy84 · 08/26/2012, 05:00 PM

Double post

acbaro · 08/26/2012, 05:33 PM

im not sure what it is when the lights are off but it may still be in the 80's.. ill try unpluggin the heater tonight and see what happens with it.. it is also set on the lowest setting being 68

iced98lx · 08/27/2012, 07:18 AM

What is the ambient temp of the room?

Mussin · 08/27/2012, 12:27 PM

That about how hot my 28G JBJ nano runs as well. I think its just the nature of the beast. I never saw any ill effects of having the high temps. Mine was around 83-84 lights on, 78-79 lights off. My corals and fish thrived.

Jeremy

ryeguyy84 · 08/27/2012, 12:43 PM

hmm with a fan my biocube HQI runs between 77.7 and 77.9 all day long.

Seagars · 08/27/2012, 01:03 PM

dont need heaters in FLA

coralsnaked · 08/27/2012, 01:06 PM

I would first ask you what 28 G JBJ Bio Cube did she purchase?
IE: LED - Intermediate or Pro, HQI or CF

Each lighting system produces a certian amount of heat and will cause the tank to run a certian level of degrees above the constant room ambiant temperature.

LED lighting produces the least amount of heat where CF Compact Fluorescent and HQI will produce more heat.

I have always used the CF models as I am more into LPS corals for these small tanks. And since I am in Central Texas where we have 9 months of summer, it has always been more benefical for my circumstance to uyilize a chiller on my JBJ tanks and allow my house to reach temps of 80+ degrees during the heat of the day.

Best suggestion short of a chiller is to purchase clip on fans to run over the refugium area open on the back. This may get you the degree or two you need. Will also evaporate water faster and you will probably need to add about a galon of RODI per week.

In addition the pumps and power heads will increase the temp of your tank as well. I have found the CF models run about 6 -7 degrees above ambiant room temp, and the LED intermediate runs around 3 -4 degrees above ambiamt temp. Not sure about the HQI but I would estimate it to be in the 5- 7 degree range.

Therefore if your ambiant room temp stays at 75 degrees constantly your tank depending on model should run 3 - 7 degrees warmer or 78 - 82 degrees which is in the safe zone for any model or set up. However tank temps above 82 is begining to get a little warm and fish will start to stress, and at 84 fish are stressing and become over active, as well as corals begining to degrade. Anything over 84 degrees is a slow burner, corals will surely wither away and fish will begin to die off.

jong11 · 08/28/2012, 05:22 AM

Did you properly calibrate your heater? That may be the issue. Even when I did, mine stilll seems to be a few degrees out of whack. If this is an issue, a controller would resolve this.

Otherwise, I'd say it's your lighting. Power compacts generate a lot of heat. You could try and led upgrade kit if your so concerned.

08/26/2012, 04:09 PM	#1
acbaro Registered Member Join Date: Apr 2012 Location: Coral Springs, FL Posts: 31	jbj 28g biocube So my sister just bought a bio cube and has had it setup for about 2 weeks now. She purchased a 100w heater and a digital thermometer. I been monitoring the thermometer and its been steady around 84 degrees. i dont understand why, i even have her thermometer turned all the way down so i doubt that is the problem. now it does seem to be pretty warm where the PC's are but i dont understand why if the fans are constantly running while the lights are one. Anything we can do to bring the temp down? __________________ wordd. Current Tank Info: 29 gal mixed tank

08/26/2012, 04:50 PM	#2
ryeguyy84 Registered Member Join Date: Mar 2011 Location: New Jersey Posts: 2,753	Is the heater stuck on? Assuming the heater has a temp setting, what is it set to? Is it only hot when the lights are on? __________________ Current tank: 90G mixed reef. Current Tank Info: 90 gallon

08/26/2012, 05:00 PM	#3
ryeguyy84 Registered Member Join Date: Mar 2011 Location: New Jersey Posts: 2,753	Double post __________________ Current tank: 90G mixed reef. Current Tank Info: 90 gallon

08/26/2012, 05:33 PM	#4
acbaro Registered Member Join Date: Apr 2012 Location: Coral Springs, FL Posts: 31	im not sure what it is when the lights are off but it may still be in the 80's.. ill try unpluggin the heater tonight and see what happens with it.. it is also set on the lowest setting being 68 __________________ wordd. Current Tank Info: 29 gal mixed tank

08/28/2012, 05:22 AM	#10
jong11 Registered Member Join Date: Sep 2009 Location: Maine Posts: 396	Did you properly calibrate your heater? That may be the issue. Even when I did, mine stilll seems to be a few degrees out of whack. If this is an issue, a controller would resolve this. Otherwise, I'd say it's your lighting. Power compacts generate a lot of heat. You could try and led upgrade kit if your so concerned. __________________ 10 gallon nano - par 38 led bulb, 2 hk nano 240gph, 75w jager heater, aquaclear 70 (w/ ac 20 impeller), rkl controller Current Tank Info: 10 gal nano, 40 gal breeder (in progress)

08/27/2012, 07:18 AM	#5
iced98lx Registered Member Join Date: Apr 2012 Posts: 2,258	What is the ambient temp of the room?

08/27/2012, 12:27 PM	#6
Mussin Registered Member Join Date: Nov 2011 Location: Lima,Ohio Posts: 728	That about how hot my 28G JBJ nano runs as well. I think its just the nature of the beast. I never saw any ill effects of having the high temps. Mine was around 83-84 lights on, 78-79 lights off. My corals and fish thrived. Jeremy

08/27/2012, 12:43 PM	#7
ryeguyy84 Registered Member Join Date: Mar 2011 Location: New Jersey Posts: 2,753	hmm with a fan my biocube HQI runs between 77.7 and 77.9 all day long.

08/27/2012, 01:03 PM	#8
Seagars Registered Member Join Date: Dec 2011 Location: Parrish, FL Posts: 1,084	dont need heaters in FLA

08/27/2012, 01:06 PM	#9
coralsnaked Registered Member Join Date: Jun 2012 Location: Austin / Port Aransas, TX Posts: 1,479	I would first ask you what 28 G JBJ Bio Cube did she purchase? IE: LED - Intermediate or Pro, HQI or CF Each lighting system produces a certian amount of heat and will cause the tank to run a certian level of degrees above the constant room ambiant temperature. LED lighting produces the least amount of heat where CF Compact Fluorescent and HQI will produce more heat. I have always used the CF models as I am more into LPS corals for these small tanks. And since I am in Central Texas where we have 9 months of summer, it has always been more benefical for my circumstance to uyilize a chiller on my JBJ tanks and allow my house to reach temps of 80+ degrees during the heat of the day. Best suggestion short of a chiller is to purchase clip on fans to run over the refugium area open on the back. This may get you the degree or two you need. Will also evaporate water faster and you will probably need to add about a galon of RODI per week. In addition the pumps and power heads will increase the temp of your tank as well. I have found the CF models run about 6 -7 degrees above ambiant room temp, and the LED intermediate runs around 3 -4 degrees above ambiamt temp. Not sure about the HQI but I would estimate it to be in the 5- 7 degree range. Therefore if your ambiant room temp stays at 75 degrees constantly your tank depending on model should run 3 - 7 degrees warmer or 78 - 82 degrees which is in the safe zone for any model or set up. However tank temps above 82 is begining to get a little warm and fish will start to stress, and at 84 fish are stressing and become over active, as well as corals begining to degrade. Anything over 84 degrees is a slow burner, corals will surely wither away and fish will begin to die off.