Curing dead live rock

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mmaglione

Aquarium Advice Regular
Joined
Jan 25, 2010
Messages
98
Location
Vermont
All,
I obtained around 70 pounds of dead live rock from a LFS that went out of business. Got it for all of $15 :). Anyway i knew i had to cure it, so i put it in a bucket of saltwater with a power head where its been for 4 weeks. It has accumulated ammonia, nitrites and now finally nitrate levels are rising. Now that the nitrates have risen, i thought this was the point i could almost put the rock into my Display tank as most of the bacteria has died of and should cause a spike in my DT. I rinsed the water, rinsed the rock with water and am letting it sit again in knew water just to make sure residual bacteria is not on the rock. I am thinking just a couple more days, another rinse in saltwater and ill throw it in the tank. What are your suggestions, what does everyone else do at the point i am at ?
 
if you already went through the cycle with the new rocks you should be fine too put it in the display
 
70lbs for $15? That's a great deal! When you say dead LR, do you mean they just had it sitting out of water for a long time or something else? Once you have scrubbed the rock of any visible junk and the levels in your curing tub reach 0 ammonia and 0 nitrites then it will be safe to add to the DT. The bacteria is not what causes the cycling of the rock. What causes the spike in amm. and nit. is the decay of organic matter (dead sea critters). The nitrifying bacteria then grow on the rock to convert the amm to nitrites, then nitrites to nitrates.

The point your at now, it would be safe to start adding the rock in 5lb increments. Add 5lbs, wait a few days to make sure your levels are fine, then add 5 more etc.If you add it all at once, it could cause a mini cycle
 
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