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butchik
02/13/2010, 10:06 AM
I'm on my 2nd week of cycling (40 gallon breeder, 45lbs deadrock, 40lbs sand, no lights, no skimmer). I started the cycle by placing a raw shrimp in the tank and it's still sitting there after 2 weeks. I've logged my cycle data below and the primary question I have is does everything looks normal? Do I need to do something to "improve" the cycle? Do I need to take the shrimp out at this point?


Day SG PH Ammonia Nitrite Nitrate
Day 1: 1.025 7.8 0.00 0.00 0
Day 3: 1.025 7.8 0.50 0.00 0
Day 5: 1.025 7.8 1.00 0.00 0
Day 7: 1.025 8.0 1.00 0.25 0
Day 10: 1.026 8.0 1.00 1.00 5
Day 12: 1.025 8.0 0.25 5.00 10
Day 14: 1.024 7.8 0.00 5.00 10

I did test for CA (420) and ALK (9) on Day 3 and haven't done one after that. I figure since they are okay then and there is no livestock in the tank that they should be fine for now. Thanks for any guidance.

Titeo
02/13/2010, 10:11 AM
Do a water change and wait for your nitrate to goes down to 0-5

syrinx
02/13/2010, 10:30 AM
Tank is cycling fine- no problems. There is no reason to worry about nitrate- nitrite will drop out in the next two weeks, then you can worry about water changes and nitrates. You can remove the shrimp if you want- but the bacteria are going to keep ahead of it in growth by this point.