Cycling a 180 gallon tank

[tcarswell]

how soon after water and filter are running can i put the 20 danios in the tank?

I wait 48 hours. And Giant danio's are a great choice they have cycled every tank I have owned before I found out about seachem stability.

 

[ward1066]

I have cycled many tanks and have never had "sick fish" I would set up the tank and let the water and temp equalize then put your cycle fish in. Cheap danois are a good idea or even feeder goldfish

 

[crisper]

When I setup a new tank I use cycled filter media and substrate from my other "matured" tanks. Fill new tank about 50% with water from my matured tanks and then treat the other 50% with prime. So it's basically just like doing a large water change. I have never lost a fish with this method. I realize this will only work for people with multiple tanks. But most of us MFKRS do.