I know the normal cycle time on a tank is 4to6 weeks,my question is i had a 38gallon already cycled about 7months running,bought a 75gallon and took 1/2 the water and my rocks and my canister filter and put it on the 75 gallon,along with a new canister filter(together they turn the tank 580 gph)how long should it take to cycle? also added Colonize to the tank with prime and stability.thank you
cycle a 75gallon
- Thread starter abstract37
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If you moved an already cycled canister filter with already cycled media to the tank it is already cycled and you need to add a bio-load to it within a day or so of the bacteria in the canister will starve. Based on what you say I'd add half the bio-load now, make sure the tests in a week are good then add the other half.
I added a 75g with a canister filled with media from the 46g tank a few months ago with the same stocking method and never saw a ammonia/nitrite spike.
Hope you have been feeding the bacteria in the new tank so it doesn't die off. You should be able to stock slowly and monitor.
Also, watch the tank that you took the media from since you depleted some of it's bacteria levels...
Also, watch the tank that you took the media from since you depleted some of it's bacteria levels...
Did you move fish also over from the 38g?The slime and any waste from the fish is a good source of bacteria,The tank should cycle very quickly.
yes i moved the fish also to the new tank,is funny cause i started with a 10gallon for my daughter,she is only coming 4yrs.so really its mine.then moved to a 38gallon,now a 75 gallon and still im not satisfied i want a bigger tank already and only had this one a little over a week
If you moved the fish with the filter, your tank is cycled for that bioload. Now you can sort of act like you had a half full biological load in the tank and start to increase the stocking level gradually beyond that point. Another thing you have done is left behind an uncycled tank, your old one. If you intend to use that tank again, make sure you do something to re-establish a biological filter in that tank first. You may get enough of a jump start from the things that you left behind to get through a fishless cycle there in a week or two. The existing gravel etc. will give you a jump start on a new filter cycling.
mostlycichlids
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