Glad you liked it. I see from looking around on this site folk are also fiberglassing the insides. I went with three or four coats of water tank epoxy form sherwin williams I think the two parts one gallon each cost about $100 each. I built a 100 and a 200 gallon with that with a little to spare. I pretty much followed the link I gave you above. I went with a glass front about half the cost but heavy! MMine have been setup December.
Lee