Cooling your tank without losing too much CO2.... - The Planted Tank Forum
 
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post #1 of 10 (permalink) Old 06-04-2013, 02:24 AM Thread Starter
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Cooling your tank without losing too much CO2....

It is getting hot in NYC and I have been using a big fan to cool the water. The downside is that my CO2 level can't be as high. Too much water surface movement and CO2 gassing off. I guess I could only turn up my CO2 EVEN MORE??? Just to give you an idea. My 10lb tank could only last me for 3 months. I am already putting a lot of CO2 in the tank.


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post #2 of 10 (permalink) Old 06-04-2013, 01:30 PM
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How hot is too hot? These fish are from the tropics. If it's less than 85, I wouldn't sweat it. I have a hard time seeing an aquarium in a home breaking 82 or 83.
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post #3 of 10 (permalink) Old 06-04-2013, 01:49 PM
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NYC here too, the tank water stands just a bit over 81F here. Before the latest heat wave the water stood at 75-77F. The fish and fauna are doing fine, so I'm not bothering to cool the water. I haven't changed the amount of CO2 going into the tank either, and the drop checker still shows green, so all's good. Not sure what kind of filter you have, but I put the CO2 diffuser right under my HOB filter flow so the bubbles get dumped back to the bottom of the tank instead of hitting the surface of the water right away.

The good news is that it's cooler today, but man was it hot earlier or what?


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post #4 of 10 (permalink) Old 06-04-2013, 02:05 PM
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Cooling your tank without losing too much CO2....

A small fan pointing to the surface will drop a few degrees, when liquids evaporate their temp drops. It's like what kangaroos do with their forearms.



This tank is rarely above 75F even when the room is above 80F.



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post #5 of 10 (permalink) Old 06-04-2013, 07:45 PM
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I am pretty sure he know how to cool the water with a fan, he wants to know how to cool it without surface agitation as to not lose CO2...

You can always go with a chiller and run it either inline or closed loop. I don't think it's really necessary, but it's an option

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A small fan pointing to the surface will drop a few degrees, when liquids evaporate their temp drops. It's like what kangaroos do with their forearms.



This tank is rarely above 75F even when the room is above 80F.



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post #6 of 10 (permalink) Old 06-04-2013, 07:50 PM
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If the tank gest too warm, I would try tossing some ice cubes for a temp relief...
Try not to gas yourself by increasing CO2 too much.
or check see if there is any leak in the lines or valves!
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post #7 of 10 (permalink) Old 06-04-2013, 08:25 PM
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with good oxygen levels higher temps are not a problem truly, if it starts getting in the 90's extreme surface agitation may be neccessary, but fret not, heat generally kills by depleting oxygen.
a 10 lb tank used to last 3 weeks on my 29 gallon. i wouldnt fret 3 months even if u dropped down to 2 months and 2 weeks.. surface agitation really doesnt kill much co2 if its done by a powerhead and not the outlet that has co2 comming out of it.......

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post #8 of 10 (permalink) Old 06-04-2013, 08:33 PM
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Here's some perspective- Where are a whole bunch (most) of our fish bred? Florida and Thailand are both pretty high on the list. It's pretty warm in both places. I don't think there's a lot of air conditioning in Thailand and I don't think they're running chillers on their systems. I know that your Florida breeding and grow-out houses or ponds don not use any type of AC or chiller for most of what they're doing. Many of the ponds are lined with black plastic if that's an indication. Some will, however, use shade cloth to protect the ponds from direct, equatorial, Florida sunlight.
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post #9 of 10 (permalink) Old 06-04-2013, 08:57 PM Thread Starter
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Quote:
Originally Posted by samwoo2go View Post
I am pretty sure he know how to cool the water with a fan, he wants to know how to cool it without surface agitation as to not lose CO2...

You can always go with a chiller and run it either inline or closed loop. I don't think it's really necessary, but it's an option

Correct. This week is cooler now in NYC. Under 80 outside. Around 80 in the tank. Last week was hot. Tank temp was around 86. Adding a big fan, it dropped to 82. I am not worrying about the fish. I am worrying about my crypts melting and the explosion of BBA if too much CO2 have been gassed off.


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post #10 of 10 (permalink) Old 06-04-2013, 09:31 PM
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Quote:
Originally Posted by tetra73 View Post
Correct. This week is cooler now in NYC. Under 80 outside. Around 80 in the tank. Last week was hot. Tank temp was around 86. Adding a big fan, it dropped to 82. I am not worrying about the fish. I am worrying about my crypts melting and the explosion of BBA if too much CO2 have been gassed off.
plant melt is a possibility.... again ur co2 will be fine, adjust up slightly.. or put a shadeclotch over ur tank and reduce lighting, this will negate the need for extra co2

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