water changes help stablize KH, in turn PH , keeps TDS low, replenishes some trace elements and keeps nitrates manageable ....it all depends upon your source water quality , stocking levels and filteration.... err on the side of caution change discus water regularly..
In my grow out tanks (its changed every other day plus my tanks have plants. duckweed and christmas moss)..
Adult discus tanks are changed once a week...
In my grow out tanks (its changed every other day plus my tanks have plants. duckweed and christmas moss)..
Adult discus tanks are changed once a week...

