Upgrading aquarium, same room, same day

I've seen some similar threads but nothing specific that is what I'm looking for. I currently have a 29 gallon community tank with some small fish and a very large cherry shrimp population (About 80-100). I plan on moving them all into a 75 gallon aquarium. The main issue is that the new aquarium is going to go into the same space as the old one. I don't the room to let a new tank cycle.

I'm trying to figure out if my cunning plan is plausible and if there's some unknown factors I'm missing.

I plan to get the fish and shrimp out, put the water in some buckets and move the new tank in place. At this point I should be able to use carpet gliders to move the empty tanks in and out of place. At this point I'll move over the old gravel substrate, set up the new substrate (Whatever it may be) and start to fill the tank. Now I will move move my filter media from my old HOB to the new canister filter. The water should get up to temp and I'll acclimate the fish and shrimp and get them in their new home.

My thinking is that as far as cycling, It'll be like doing a large water change. Other than the time spent doing all of thing, I'm sure there are some pitfalls I'm not anticipating.

Am I missing anything? Is there anything I should anticipate and prepare for in the aftermath?

 

You should be OK assuming you don't increase the stocking for a couple weeks. Also, catching all the shrimp may take longer than you think...

 

I wouldn’t acclimate . I’d net as much live stock as possible into one bucket with a heater ( keep all water too) when moved into place, empty all live stock into the new tank . Any new water I’d drip in and that would act as acclimation. Leave an inch or so of water in the old tank, set the new one up, begin the drip of fresh water then spend the time looking for left over shrimp and moving substrate . Good luck !

Edit : didn’t seem clear when I read it back. I meant move all old water , then add live stock and heater then drip fresh temp matched water.

 

I'd feel much more confident if you ran your HOB in parallel with the new filter for a week or more and let that filter be biological and the new filter be mechanical and colonize off the tank. less "interruption" chances in my opinion especially considering you wont be using both tanks anyways.
Your HOB had enough biological for your stocking level as it was it will do the job on the 75 and in time the new filter will get established and you can remove the HOB after. Sort of a safety net precaution. I've heard of people moving the media and the biological going on vacation for a bit in the transition causing problems

 

You should be OK assuming you don't increase the stocking for a couple weeks. Also, catching all the shrimp may take longer than you think...

I am fully expecting the worst. I have a big java fern bush in there that they tend to gather on. I'm hoping in the week leading up to that I can sink an acrylic container and put the fern in that. Hopefully I can trap the bulk of them in one go.

I don't plan to add new fish for a while. I want to make sure everything goes well first.

 

Just don’t let your old filter media dry out, test regularly for a month after moving and supplement feed the shrimp as they’ll be no bio film on glass etc. Move all plant and decor , you can remove after a month or two once things settle.
How long until you start the move ?

 

Just don’t let your old filter media dry out, test regularly for a month after moving and supplement feed the shrimp as they’ll be no bio film on glass etc. Move all plant and decor , you can remove after a month or two once things settle.
How long until you start the move ?

At least a month or two.

 

Okay so you’ve got lots of time to plan . That’s great ! As above don’t let filter media dry out and move it with the change over , move all gravel / decor / plants. Supplement feed the shrimps for the first 2/3 months and you’re good !

 

Thanks everyone. It sounded good on paper, but it's such a big operation I wanted to make sure I had my bases covered.

 

May be you should plan for multiple days?
Get a big enough tote, move everything into it. Now you have time to fully empty the original tank, find the last shrimp. Then you can relax for the rest of the day....or start to scape the new tank in the destination place without pressure.
I found that being prepared for a multiple day move makes it more relaxing than trying to push it all within one day.

 

That makes a lot of sense actually. My biggest fear would be that the fish and shrimp do poorly in a tote overnight? I could add a heater and a bubbler, but still, it worries me.