Hey, welcome to the hobby
So you can definitely mix rock I wouldn't thought tends to look off instead I would get a few pieces of established rock to put in the back compartment .
Definitely buy new sand sand is cheep.why use someone's gross old problem sand. A few extra bucks goes along way. Definitely start by adding a few snails and hermit crabs when you start getting an algea bloom i would recomend doing a fish less cycle as its kinda hard on the fish.
The best way to clean your tank would be to go to Walmart and buy 3 gallons of vinegar will cost like 6 bucks an mix it with enough water to run the tank till its clean
Last edited by Coral Hoarder; 05-12-2017 at 12:21 AM.
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