My 4 gallon build has cost me about $300. I am going with 12 3 watt Crees. The buckpucks that are running the LEDs will be able to be dimmed. I am going with 12 so they don't give off a spot light effect and will blend well. I think the rule to good blending is 2'' or less between leds, anything more and they spotlight. I know 12 leds is overkill but i will dim them down to a good level of light.
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