Halfway through FW fishless... can I switch to Marine?

[crharvel]

I am halfway through a fishless cycle on a FW tank. Can I swith to marine and not kill of the fledgling bacteria colonies?

What about if I bring the salinity up very slowly?

Trying to avoid having to drop big bucks on live rock...hard enough explaining all the tank/filter/ purchases to the wife. Nevermind another hundred or so bucks on rock.

"You paid how much... for a bunch of rocks? Rocks aren't alive dummy!"

 

[Reefscape]

What is in the tank regards substrate and decor?

 

[dorkfish]

Marine and freshwater bacterias are two different things... no, you will have to restart the cycle to go marine.

 

[crharvel]

What is in the tank regards substrate and decor?

No decor yet. Tank is empty with the exception of two nylon bags full of seasoned gravel (estimating between 5-7 pounds) from an established FW tank. Filter is a Whisper 60 (new media) and also have a Zoom pivot head powerhead in with new sponge pre-filter.

I do have two bags of Seachem Grey Coast substrate that I got (that started this whole idea). Would this be of any cycling assistance?

 

[SigPiPup]

According to your sig it looks like you have a 75g that is currently empty. Why don't you just make that into a SW. That sounds like a good starter size.

 

[SHK_ATK]

if you dump out the water and star over you can get cured LR and LS and cut down your cycling to about a week 2 week max.