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Hey guys, this forum has been of invaluable help to me so far in my aquascaping quest so thanks to everyone for that! I finally have everything I need to set up my first aquascape apart from the plants. It has taken me weeks to decide on these and I finally have a finalised list. I'm worried...

I am wanting to set up another shrimp tank. I have a ten gallon tank that I want to use. I want to get some nice substrate for the tank and I can get an 8.8lbs bag on amazon for $18.00 shipped would that be enough? Or should I get an 8.8lbs bag and a 4.4lbs bag together?