# Density is reducing after nvt equilibration follwed by md production

**URL:** <https://gromacs.bioexcel.eu/t/density-is-reducing-after-nvt-equilibration-follwed-by-md-production/12540>\
**Category:** User discussions\
**Tags:** density-fit\
**Created:** [August 19, 2025, 10:25am UTC](https://gromacs.bioexcel.eu/t/density-is-reducing-after-nvt-equilibration-follwed-by-md-production/12540 "2025-08-19T10:25:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sanket\_singare](https://avatars.discourse-cdn.com/v4/letter/s/96bed5/32.png) [@sanket\_singare](https://gromacs.bioexcel.eu/u/sanket_singare)\
**Post date:** [August 19, 2025, 10:25am UTC](https://gromacs.bioexcel.eu/t/density-is-reducing-after-nvt-equilibration-follwed-by-md-production/12540/1 "2025-08-19T10:25:39Z")

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GROMACS version:  
GROMACS modification: Yes/No  
Here post your question  
Hello Users,  
I am doing md simulation in which for npt production i am getting actual density of solvent , but after doing nvt equilibration, followed by md production the actual density is reducing  
so please resolve the query, i need to increas the pressure in mdproduction or there is another way to get the actual density  
please give resolve the issue