Hi guys,
I went to the LFS to get another pleco because sadly I found mine dead and half eaten in the tank this morning

I tested the water and all seems to be ok with that though.
Anyway, I ended up coming home with my second gorgeous Betta, a new 7.5G tank and all the accessories. Would it be a good idea to take some water from the 13G or 37G tank which are running and cycled or should I just go with the fresh water and conditioner in the new tank and do partial water changes every other day until the new one is cycled?
Lise x