Haha, im glad i got you interested in this!
ya, sorry pic is dark, thats my tank.
http://cgi.ebay.com/20-Blue-5mm-Ult...588312525QQcategoryZ66951QQrdZ1QQcmdZViewItem
i think that is the guy i got mine from, 6 bucks is what i payed. it should have 20 leds and 20 resistors with it. then you need a 12 v adapter, you can pick that up at radio shack or any other place of the sort. many adapters come with a plug of your choice, doesnt matter, you are cutting that off anyways. the only other thing you need is wire, how ever many feet you want the lights to stretch. Take your resistors and soldier one on each of the positive sides of the led, the led has 2 wires coming out, one positive one negative, the positive is the longer one. once you have a resistor attached to each led, take 2 lengths of the wire you need, one of them is gonna be positive, one will be negative, preferably get different color wire so you dont mess this up. lay them out so they are parallel to eachother. you are gonna go along and strip parts of the wire where you want an LED, you can gut the wire, strip it, soldier it to the led, or you can just strip away the wire casing with out cutting the wire. but you want all the negative ends of the LEDS in a line all attached to the negative wire, then take the other end of the resistor that is attached to the led positive, and do the same as you did with the negative. essentially you get a bunch of leds lined up with 2 wires running down the whole line. ========== each gap there represents where an led would be. then wire up the positive to the positive end of the 12v adapter, and negative to negative and turn it on, before you do that i recommend either taping up all connections so no bare wire touches, or use a hot glue gun and seal all the connections. if any of that didnt make sense, ill post some pics.
