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im cureing 40 pounds of live rock in a 30g tub its been a week and my ammonia is now at 0 nitrite is threw the roof so isnt nitrate whitch is to be expected. my question is should i leave the water as is and let it do its thing till the nitrite drops to 0 or should i do the 100% water change and test again in a few days? btw this is my first time cureing lr so sorry for the stupid questions
No question is a dumb question and you are smart for asking it! Just know that in the curing process you are bound to have nitrate or ammonia spikes eventually. I agree with Reef Madness about doing normal water changes and you could also try smelling the rock for a decay fishy smell (which could be the reason for the nitrate spike) and if it smells you could soak the rock in fresh RO/DI water to help rid some of the bacteria or parasites.
It's part of the process. I recommend you wait until the readings are zero before doing the water change otherwise your tank will take longer to cycle. See graph below.
100 Gal SPS Rimless, 2X250 Watt + 4T5's Giesemann infinity, Bubble King Mini 200 skimmer, Ca reactor, DIY Kalk Reactor. See my Reef aquarium in HD video http://www.fishtanks.net/fishtank.php?fishtank=2207.
i dont have the rock in my tank yet its going to be added to my allready exsisting tank thats why i wana make sure i do this right. i know its only been a week and im probuly going to cure it for a few more even if the readings come back ok just to be safe cause the rock was alot cheaper then what i will end up killing in my tank lol. i did a 100% water change after scrubbing the rock down the rock itself smells like rotting fish still so im sure it no where near done yet. i guess what i just really need to know now is if doing the 100% water changes is a waist and should i just let it sit or do partial after the ammonia drops to 0 and let the bacteria handel the nitrit. another question i cant seem to find a answere for is if my tank is going to cycle again after i add this rock the set up im adding it to has been up and running for 8 months now and everything as far as paramiters is where it should be.
I also want to mention that it might be a good idea to only add about 1 lb per 10% of the volume of the main tank..For example in case that makes no sense by my wording lol. IF your tank is only 50 gallons adding about 5 lbs of LR every couple of weeks is a pretty safe practice. That way if there are still nitrates on the rock it won't effect the water quality as much. Also before you add it, if you just let the rock sit without doing water changes it should be fine, just make sure to top off the water with RO/DI I hope that helps
hmmm thats a good idea. its been 2 full weeks now of cureing my ammonia is still 0 nitrite is at 5.0ppm and my nitrate is 0 whitch kinda shocked me i figured my nitrate would be very very high due to the nitrite conversion. another thing is out of all the rocks i have 2 of them smell horrible like rotting fish still everything else dosnt smell bad at all. i went all over the 2 rocks looking for anything spongy or decaying i may have missed. if the parameters say 0,0,0 and it still smells bad is it safe to add to the tank?
Last edited by bigrift; 07-08-2011 at 09:03 PM.
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