I have an experience with chiped scales, there were 5. In healing those chiped scales, I regularly changed 30% of water every 3 days for one month & either the filter
You also should keep the water clean from aro faeces & fodders in order to avoid any infection into your aro, I suggest both in the morning & evening
Finally, if you have heater, you can adjust it at 30 degree Celcius
Any advise guys...........
