Discus question

[Italian_Stallion]

i was just wondering, when u do a water change does it have to be RO water or can it just be dechlorinated tap water ? i dont have discus btw, i was just curious...

Thanks
Rocky

 

[annka5]

Depends omn the water from the tap. If it has high levels of nasties like heavy metlas, phosphates, nitrates, how hard it is, how acidic it is, then RO is a very good plan.