Tank Temperature

PSU4ME · 07-30-2004, 09:47 PM

Wondering what you REAL tank temp is? Mine is at 86 right now and i am installing MH's in the next week (today if the sockets would have arrived....UPS

)

Wondering if I will have a problem:

Current 4-96 watt PC with no fans at all

Installing 2 250 watt MH's with 4 fans...2 in and 2 out.

Can i get your thoughts?

Witfull · 07-30-2004, 11:08 PM

86*???? without halides,,,,whoah....you got problems brother!!!you are borderline of a crash.

PSU4ME · 07-30-2004, 11:15 PM

But i have no fans blowing the heat away...do you think once the halides go in and i install 4 fans that the temp will rise?

Witfull · 07-30-2004, 11:19 PM

install the fans immediately if you can and get the temp down ASAP. 86 is very high and stressful to a reef, also it lowers the disolved oxygen.

once you see the temp with the fans, then you can get a better judgement on tempurature affect of halides.

PSU4ME · 07-30-2004, 11:35 PM

I put a fan on the 40 breeder sump....just got the halides today and the hood is just about complete. Where would you place the fans? I have 4 and i was thinkin 2 in and 2out....but all in the back...do they need to blow across? Also, how do the Pc stack up against on the MH's?

Thanks

Witfull · 07-30-2004, 11:42 PM

one blowing in from one side, one out from the other and 2 blowing out from the top from directly over the bulbs.

fugazi · 07-31-2004, 12:31 AM

i have a 4" fan on both sides blowing across a 250 hqi. one sucking in and one blowing out. seems to work pretty good. tank only raises 1.5 degrees with the mh and 196w pc on.

PSU4ME · 07-31-2004, 12:45 AM

What the tank size and what is the room temperature?

Brucey · 07-31-2004, 06:25 AM

WOW . . . 86. That's REALLY high. We had a heetwave recently and my friends tank went from 81 to 87 and he lost half his stock. Please get your temp sorted before you even turn on your MH . . . . you are risking everything. Get the tank running at 80-81 Max before you even consider turning on those babes. I know how tempting it is to get them up and running but you need to get the temp down, then turn on the MH and just spend a day at home checking the temp every hour until you know your not heading for a crash.

If it's an enclosed hood, 2 in, 2 out is good. If it's not enlcosed, I would go for 4 fans blowing in. Remember, fans blowing out only last half as long as fans blowing in . . . . Brucey.

PS, you'll notice a large increase in evaporation as well so be ready for top up too.

Brucey

wooddood · 07-31-2004, 08:44 AM

man i'll have to agree 86 without halides. you need to get the tank temp down first like witt said. all i can say is if the temp is that high now your going to be in big trouble with halides even with the fans your not going to get the temp below the 86 you have now probally higher. may i suggest a chiller.

dave.

NaH2O · 07-31-2004, 11:12 AM

I agree, 86 is too high to add halides to. How much did the fan on the sump help? I have 4 fans blowing out of my hood. Air blowing into the hood & on the bulbs would change the temperature of the bulb. Try and get sump area first before blowing air into the canopy. You can also try doing some other cooling techniques. I thought these were very interesting - the first has a description of using a 5 gallon bucket filled with ice - run a coil of tubing through it and take a power head...pump water into the tubing....return back to the sump. Temp help - I believe it is on page 2. Other people have used rotating frozen 2 liter bottles, frozen RO/DI, etc. Is the room your tank is in air conditioned?

PSU4ME · 07-31-2004, 12:33 PM

well the fan on the sump went down to 82.....then checked the heater in a seperate container and guess who cant read the heater settings <<me>>. heater was at 82 so i took it down to 79 and i will see how it goes from there.

Thanks

BoomerD · 07-31-2004, 01:29 PM

Keep in mind that you want to minimize the amount of temperature change in a daily swing. 2 degrees per day max is the recommendation. Once you ght the lights on, and see how much they're going to push up the temps, then adjust your heater to just a tiny bit less than that temperature. It would be better for the health of the fish to have the tank at a constant 84 than to have it bounce from 79 to 84 then back to 79 with the lighting cycle every day.

PSU4ME · 07-31-2004, 01:31 PM

very true....the lights are coming on now so i am watching it.

How much of a heat increase should i see by replacin 4-96 watt PC's with 2 250 watt MH's (keep fans out)

I plan to put the 4 fans in the new hood...i'm finishing up the staining now.

Thanks

BoomerD · 07-31-2004, 01:57 PM

Probably at least a couple of degrees WITH fans...much more without them.

View Poll Results: Whats your Real Temp?
78-79	55	30.90%
79-80	49	27.53%
80-81	36	20.22%
81-82	20	11.24%
82-83	14	7.87%
83-84	3	1.69%
84-85	0	0%
above 85?	1	0.56%
Voters: 178. You may not vote on this poll

07-30-2004, 09:47 PM	#1 (permalink)
PSU4ME JoePa lives on!!! Join Date: Nov 2003 Location: PA Posts: 382 View Gallery Karma Komment	Tank Temperature Wondering what you REAL tank temp is? Mine is at 86 right now and i am installing MH's in the next week (today if the sockets would have arrived....UPS ) Wondering if I will have a problem: Current 4-96 watt PC with no fans at all Installing 2 250 watt MH's with 4 fans...2 in and 2 out. Can i get your thoughts? __________________ 90 Gallon AGA with a 40 breeder sump (DIY). 2-250 Watt XM 10k's and 2 actinic VHO's. 3-5 inch DSB.

07-30-2004, 11:15 PM	#3 (permalink)
PSU4ME JoePa lives on!!! Join Date: Nov 2003 Location: PA Posts: 382 View Gallery Karma Komment	But i have no fans blowing the heat away...do you think once the halides go in and i install 4 fans that the temp will rise? __________________ 90 Gallon AGA with a 40 breeder sump (DIY). 2-250 Watt XM 10k's and 2 actinic VHO's. 3-5 inch DSB.

07-30-2004, 11:35 PM	#5 (permalink)
PSU4ME JoePa lives on!!! Join Date: Nov 2003 Location: PA Posts: 382 View Gallery Karma Komment	I put a fan on the 40 breeder sump....just got the halides today and the hood is just about complete. Where would you place the fans? I have 4 and i was thinkin 2 in and 2out....but all in the back...do they need to blow across? Also, how do the Pc stack up against on the MH's? Thanks __________________ 90 Gallon AGA with a 40 breeder sump (DIY). 2-250 Watt XM 10k's and 2 actinic VHO's. 3-5 inch DSB.

07-31-2004, 12:45 AM	#8 (permalink)
PSU4ME JoePa lives on!!! Join Date: Nov 2003 Location: PA Posts: 382 View Gallery Karma Komment	What the tank size and what is the room temperature? __________________ 90 Gallon AGA with a 40 breeder sump (DIY). 2-250 Watt XM 10k's and 2 actinic VHO's. 3-5 inch DSB.

07-31-2004, 12:31 AM	#7 (permalink)
fugazi Limpet Join Date: Jun 2004 Location: jersey- where the devil runs wild Posts: 125 View Gallery Karma Komment	i have a 4" fan on both sides blowing across a 250 hqi. one sucking in and one blowing out. seems to work pretty good. tank only raises 1.5 degrees with the mh and 196w pc on.

07-31-2004, 06:25 AM	#9 (permalink)
Brucey Reef Lobster Join Date: Nov 2003 Location: Reading, England Posts: 1,292 View Gallery Karma Komment	WOW . . . 86. That's REALLY high. We had a heetwave recently and my friends tank went from 81 to 87 and he lost half his stock. Please get your temp sorted before you even turn on your MH . . . . you are risking everything. Get the tank running at 80-81 Max before you even consider turning on those babes. I know how tempting it is to get them up and running but you need to get the temp down, then turn on the MH and just spend a day at home checking the temp every hour until you know your not heading for a crash. If it's an enclosed hood, 2 in, 2 out is good. If it's not enlcosed, I would go for 4 fans blowing in. Remember, fans blowing out only last half as long as fans blowing in . . . . Brucey. PS, you'll notice a large increase in evaporation as well so be ready for top up too. Brucey __________________ 160UK Gallon. (192US Gallon). 400Lbs LR. Aquamedic Turboflotor 5000 Shorty skimmer. Arcadia 3Series pendant (3x250W 14,000'K MH & 2x58W 60" actinic) (DIY cooling fan). Tunze 7095 Multicontroller & 2xTunze 6100 Streams. Redsea 100 Aquazone Plus ozonizer and redox computer. Aquamedic Ocean Runner 6500 return. TMC Vectron 30W UV sterilizer. Aquamedic Aquaniveau auto top up system through Deltec 500 kalk stirrer. PurityOnTap RO/DI. Deltec FR509 (ROWAPhos). Aquamedic PH computer controlling KNOP HD Calcium Reactor. Setup Nov 2002 See my tank here http://www.reefsanctuary.com/forums/...&threadid=4486

07-31-2004, 08:44 AM	#10 (permalink)
wooddood the wood dude Join Date: Nov 2003 Location: marion. INDIANA Posts: 3,457 View Gallery Karma Komment Add yours!	man i'll have to agree 86 without halides. you need to get the tank temp down first like witt said. all i can say is if the temp is that high now your going to be in big trouble with halides even with the fans your not going to get the temp below the 86 you have now probally higher. may i suggest a chiller. dave. __________________ 120 gal/in wall tank/starboard substraight/2 250 watt 10k xm metal halides/ 4 55watt 03 actinics/150lbs lr/scwd on return/scwd on a closed loop/aquaclear aquatics 200 pro wetdry w/skimmer. ask all the questions you have if we cant answer it we'll make up some thing. remember patience is the key to a kick ass reef. dave.

07-31-2004, 11:12 AM	#11 (permalink)
NaH2O Contributing Member Join Date: Nov 2003 Location: Indianapolis Posts: 1,929 View Gallery Karma Komment	I agree, 86 is too high to add halides to. How much did the fan on the sump help? I have 4 fans blowing out of my hood. Air blowing into the hood & on the bulbs would change the temperature of the bulb. Try and get sump area first before blowing air into the canopy. You can also try doing some other cooling techniques. I thought these were very interesting - the first has a description of using a 5 gallon bucket filled with ice - run a coil of tubing through it and take a power head...pump water into the tubing....return back to the sump. Temp help - I believe it is on page 2. Other people have used rotating frozen 2 liter bottles, frozen RO/DI, etc. Is the room your tank is in air conditioned? __________________ ~Nikki~

07-31-2004, 12:33 PM	#12 (permalink)
PSU4ME JoePa lives on!!! Join Date: Nov 2003 Location: PA Posts: 382 View Gallery Karma Komment	well the fan on the sump went down to 82.....then checked the heater in a seperate container and guess who cant read the heater settings <<me>>. heater was at 82 so i took it down to 79 and i will see how it goes from there. Thanks __________________ 90 Gallon AGA with a 40 breeder sump (DIY). 2-250 Watt XM 10k's and 2 actinic VHO's. 3-5 inch DSB.

07-31-2004, 01:29 PM	#13 (permalink)
BoomerD Reef Shark Join Date: Nov 2003 Location: Northern California Posts: 5,638 View Gallery Karma Komment	Keep in mind that you want to minimize the amount of temperature change in a daily swing. 2 degrees per day max is the recommendation. Once you ght the lights on, and see how much they're going to push up the temps, then adjust your heater to just a tiny bit less than that temperature. It would be better for the health of the fish to have the tank at a constant 84 than to have it bounce from 79 to 84 then back to 79 with the lighting cycle every day. __________________ Intelligence is not knowing all the answers, but knowing where and how to find them! www.google.com

07-31-2004, 01:31 PM	#14 (permalink)
PSU4ME JoePa lives on!!! Join Date: Nov 2003 Location: PA Posts: 382 View Gallery Karma Komment	very true....the lights are coming on now so i am watching it. How much of a heat increase should i see by replacin 4-96 watt PC's with 2 250 watt MH's (keep fans out) I plan to put the 4 fans in the new hood...i'm finishing up the staining now. Thanks __________________ 90 Gallon AGA with a 40 breeder sump (DIY). 2-250 Watt XM 10k's and 2 actinic VHO's. 3-5 inch DSB.

07-31-2004, 01:57 PM	#15 (permalink)
BoomerD Reef Shark Join Date: Nov 2003 Location: Northern California Posts: 5,638 View Gallery Karma Komment	Probably at least a couple of degrees WITH fans...much more without them. __________________ Intelligence is not knowing all the answers, but knowing where and how to find them! www.google.com

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)