My First Led build

[Corvette Reefer]

The whole structure it is being built on a aluminum case so the who thing acts as a heat sink and i will be getting a fan to blow over the leds to help and maybe ill add the little heat sink i have and put it in the middle on top of it once i build it and see how hot it gets.
As for the led heat transfer, im going to solder them with aluminum type stuff so it will transfer heat very good. And the leds color im just experimenting, i have read that the cool white wash out corals but i want the power from them, and im just gona do tests and see how i like the color, i cant change any colors now cuz i already ordered them, but im hoppppping it should be appealing to me

[2pairs]

The whole structure it is being built on a aluminum case so the who thing acts as a heat sink and i will be getting a fan to blow over the leds to help and maybe ill add the little heat sink i have and put it in the middle on top of it once i build it and see how hot it gets.
As for the led heat transfer, im going to solder them with aluminum type stuff so it will transfer heat very good. And the leds color im just experimenting, i have read that the cool white wash out corals but i want the power from them, and im just gona do tests and see how i like the color, i cant change any colors now cuz i already ordered them, but im hoppppping it should be appealing to me

First thing don't get me wrong I am not trying to discourage you, I just know what you are going to do will over heat the LED's and that is a wast of good LED's. After you do this and over heat them they will no longer be good for use on a aquarium even though they will still light up they will no longer be capable of producing the PAR that you need.
You already have about $60 in Led's it would only cost about $15 for the thermal conductive grease or adhesive and a heat sink isn't that much more. The best thing you can do is just wait until you can get the things to do it so it will work and last.
As for a heat sink I have some square tubing you could have to put together and make one, I don't know how big you aer thinking but I think their is enough to do what you will need.
Think about it, I just hate to see you fry those LED's.