What are some good affordable rodi systems for a nano tank

[Scoobydoo]

I have finally got my levels down and time to do water change does anyone know what the best way ro match salenity

 

[Spare time]

You can always use distilled water if you need to. If you want an RO unit, I really like the BRS ones, but RO buddie is a cheap one that works BUT you NEED to get a flush valve (with any RO unit) because otherwise you will burn through DI resin like there is no tomorrow.

 

[Scoobydoo]

You can always use distilled water if you need to. If you want an RO unit, I really like the BRS ones, but RO buddie is a cheap one that works BUT you NEED to get a flush valve (with any RO unit) because otherwise you will burn through DI resin like there is no tomorrow.

Thanks im new to saltwater