Aquaman99
Aquarium Advice Apprentice
When it comes time to top-off the water in my tank due to evaporation, can I use plain old RO/DI water or does it have to be a premix with salt?
i understand that if I am doing a PWC it needs to be mixed with salt...just wasn't sure about topping off the water though.
Thanks
i understand that if I am doing a PWC it needs to be mixed with salt...just wasn't sure about topping off the water though.
Thanks