im guessing the thickness is standerd.
blue damsel is a very good starter fish and will tolerate the cycle process I have done it will all of my salt tank setups and they where fine. Then add tank mates, coral, etc good luck!!
Check my source. I could not have answered this on my own but i checked out an awesome site i knew of and there are result. Those are easy fish to care for, with a tank requirement of 10. Damsels are easy to care for, and cheap, but they require tanks twice as big.
I'm sorry but if all you have to work with is about a 15 gallon you may want to seriously consider freshwater rather than saltwater. You know the tank is too small. You need to buy fish that are compatible with your tank size. It's not worth it to set up the tank and keep fish who won't thrive in your care. I don't understand why you want to make things harder on yourself and waste your money. Nano tanks can be kept by experienced aquarists which you are not. If you're not going to spend the time/money, and make the room to care for fish properly, then what's the point?
how could you afford 3 inch type L copper at 10 feet long ? so if you cant afford it you will never buy ithence forth you do not need the weight
Steady is right - I typed 'weight of 10 feet of type L copper pipe' into the google window and there was a chart that had it right there. It's in print, so it has to be true Good Luck - paying for it.