Originally Posted by Koikeeper99
It could be one or a tank filled with one kind of fish like 838474 neon tetras or something
Well in that case. :-p
I would go all out and build my football size tank, and using the 1in per gallon rule. For a tank of 100 yards long and 50 yards across and 100 foot deep that's 50,000,000 gallons. That means I could put about 25,000,000 GloFish in of all different colors. Put a lot of neon rocks on the bottom, and a lot of neon colorful looking decorations in. I would than get a bunch of black lights and light it up.
That would have to be one heck of a light show. :-p If I did my math right that is. :-p