I'm setting up a 100 gal tank. I will be moving everything from the esstablished tank to the new one. Should I bother adding some of the old water too?
Upgrading tank should I use old water too?
- Thread starter Snowflake311
- Start date
Yes, use some of the old water (10 gallons or so at least) and keep the biological filter material wet. This more or less negates the need to cycle it, well maybe not but it's the way I've done it numerous times before when upgrading tanks and never lost a fish yet this way.
Moving the substrate and decor will also move some of the beneficial bacteria.
Moving the substrate and decor will also move some of the beneficial bacteria.
Ok thanks I will add some old water. The esstablished tank is a 55 gal. I'm moving the sand filter deco plants all to the 100 gal. I'm also adding a new filter to run with my old one.
Definitely. It's like moving to a whole other country if you don't use the same water. If you change all the water it will probably cause the BB to die and the fish to go into shock and eventually die. Keep several gallons of it. And definitely keep the filters
When I got my 150 a few months ago I moved my oscar 5 clowns and 3 tinfoils over to it. I used all new water and new sand. Only other thing I brought from the old tank was some rocks and the filters. I tested my water everday and nothing changed everything was perfect and still is.
Other then water parameters, not sure why you would use the old water (BB isn't circulating in the water column). Basically, you'd be doing a 100% water change by not using the old tank water. As long as the tank water params are close to the params of the water you use for water changes, you'll be fine.
Using the substrate and filter media from the old tank is a good idea though.
Using the substrate and filter media from the old tank is a good idea though.
I've done this before with my 120gal. I used 55gal. trash cans to hold the siphoned water from my original tank. I then transfered about half of that water and mixed it with fresh water. By adding some of the older substrate material and water I was able to avoid new tank syndrome.