I currently have a 29 gallon reef tank with a 10 gallon sump that is running great. All parameters are very stable and all the livestock are growing and happy. I quickly realized that this tank is simply not big enough (which I'm sure we all have done). I pulled the trigger on a 180 gallon and am in the process of building a large sump. I am also adding a custom 20 gallon frag tank to the system to run off of the 180's sump. On top of all that, I am eventually wanting to cut my current 29 gallon reef into the same sump as the frag tank and 180. My question is this.... Should I cycle the new system separately and cut in my 29 gallon after or can I cut in the 29 at the beginning and let it somewhat seed the 180 and frag tank. Oh I almost forgot, in the 180 gallon, I am going to be using dead, dry rock and also dry sand to prevent any hitchhikers.
Separate cycle or not?
- Thread starter M_norrick
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kevinsmixed90
Active Member
wow. a 180. sweet. imo, there is not enough bacteria in the 29 to cycle the 180 fast enough. you may end up with ammonia and nitrates in the 29 before it can completely cycle. you can buy some live bacteria to help with cycling the system quicker. also remember that with everything connected into a single system, if god forbid something bad happens in one tank it will spread into everything. maybe you could keep the frag tank(s) separate
I thought about keeping them separate but I am wanting to automate all that I can with the tanks. In an automation and maintenance standpoint, it just made sense to connect them all to one common sump. I do understand what you are saying though. I'm just gonna be extra careful, dip all coral, and ofcourse cross my fingers. I'm taking pics as I go and will post a build thread. I'm hoping to cycle before fall. That does make sense about not enough bacteria but if there isn't a bioload in the 180 and frag tank, couldn't I simply add livestock slowly so the system doesn't get overwhelmed?
kevinsmixed90
Active Member
yes, I think letting a system cycle naturally is best but I don't always have the patience for that. it sounds like you have a good plan and the right knowledge so im sure you will be fine.enjoy the 180! looking forward to the pics!
