How do I cool down my tank?

Ive had my 300 running for a lil over a week (still cycling). The hottest my tank got was 88* and Im kind of worried as I dont know if my Goliath would like that. Even at that... August is right around the corner and Im sure it will get hotter. I have my tank along a wall that the sun does not hit on the exterior and I have 2 40watt 4' bulbs that I run from 10am-10pm (ganna change the timer to 4pm-10pm tonight).

Any ways you guys cool down your Freshwater tanks?

dr_sudz;2019617; said:

I would suspect that a good chunk of your heat is coming from your pumps. You can always do what the saltys do and through on a chiller. Basically your running your water through the fridge before sending it out to the tank.

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Austin;2019619; said:

buy a chiller, but they are expensive...especially for a 300

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I just need it dropped about 3* and Ill be happy
By the way, I dont have my heater hooked up

Tigerfish908;2019763; said:

What is the temp of the room the tank is in? It's not cooled by AC???

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No A/C in the house
Thats the next construction project (in a few yrs, in the last week of complete re-model right now)

xcuter;2019806; said:

try doing what people recommended for John. Use 2 liter soda bottles, fill them up with water and freeze them. After throw them in your sump and that should cool down your tank a bit during the day.

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Im ganna try this with 3 bottles (since I have a lil more water), thanks X

flamenco-t;2019834; said:

run a fan to blow ripples across the top of the water surface

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I have 1 light that is 2' and it has a fan. The light is on a timer (aside from the 4' lights) and I only have that one on from 6-9pm but it has a fan that I keep on 24/7

another thing (dont know if it has an effect on it thou)... I have a pump that breaks the surface and makes air bubbles once it hits the water and it has a 2'+ stream of air. Do you think this might be heating up my tank or cooling it down? Ill try to slam a pic tomorrow of my well aerated tank (atleast I think so)