Hey folks i recently got a motoro stingray from aquascape.com was in perfect condition. After 2 weeks i noticed a small wound on his back i tested my water and it came up good except nitrate was a bit high bout 80ppm and my PH is 7.2 ammonia 0 chlorine 0 nitrite 0. so i stopped feeding them so much, i do a 30% water change every monday, i tested my water from the tap its good not high in nitrate.
What i think it is, he likes to swim up the sides of the tank and behind the heaters, i think he got stuck behind one and maybe got burnt the tank is at 77 degrees all day maybe a bit lower max out at 78. I have 2 400w heaters its a 180g tank with a fluval fx5 here is some pics of his wound it got a lot worse so i decided to ask for some advice.



What i think it is, he likes to swim up the sides of the tank and behind the heaters, i think he got stuck behind one and maybe got burnt the tank is at 77 degrees all day maybe a bit lower max out at 78. I have 2 400w heaters its a 180g tank with a fluval fx5 here is some pics of his wound it got a lot worse so i decided to ask for some advice.


