For sure use your old rez water for houseplants, grass, trees, outdoor plant, vegetables. It is still good for that.
Perp Reviewed by Perp on . Fish poop? Ok I gotta do a water change on one of my large tanks. My question is would this old watter be good for watering? The area of my yard where I normally dump it grows some hugh ass bushes and roses bushes compared to the area where I don't dump it. I just throw the hose out the same window every time. Any chemical I use in my tanks are fish and live plant friendly. All fresh water with controlled PH levels. I can assume it would be ok but I just wanted to get input, mainly from anyone who has Rating: 5