My tank is a 30 gallon, I over killed on the filter cause i like to be safe I have a 330 B i think its a penguin don't remember. But it has to cartridges and bio wheels. And i just ordered bio-spira cause I have heard many good reviews on this stuff. Look it up on google if u like.

O and is this safe too use with the fish in it since its only the bacteria not the ammonia
http://www.petsmart.com/global/product_detail.jsp?PRODUCT%3C%3Eprd_id=845524441776794&FOLDER%3C%3Efolder_id=2534374302030122&ASSORTMENT%3C%3East_id=2534374302023693&bmUID=1152802728959&itemNo=0&Ntt=tank+cycle ...

Well i have had them in there about 2 and half days and i checked the nitrite levels and its still at 0 is that bad does that mean theres not enough amonia to cycle it.

well since it is too late for that. How long do you think it will be before the cycle is complete

Hey im new to this forum, my name is zack.

Is it ok to cycle a tank with 3 cory catfish. I plan on keeping them,and getting some ifga quality guppies.