Hello,I have a female betta in a planted community 100L / 28G tank and I’ve had her for about five months. She’s always been very bright and healthy. Until today. She’s sat at the top of the tank, looking very lethargic and not her happy self.I’ve tested the water and it’s come back as normal; 0 ammonia, 0 nitrite and 40 nitrate (I know 40 is high but it’s always been like that because my tap water is high in nitrate).I’m about to do a water change now anyway, just in case, but I was wondering if anyone had any thoughts on what might be going on or what else I can do to help her?Tank Specs:100L / 28G tank (36”L x 12”D x 15”H)Fluval U4 Filter24 - 25C / 75 - 77F50% weekly water change (seachem prime)
Stocking:1 female betta6 harlequin Rasboras10 false julii corys30+ something RCSWater qualityAmmonia 0NO3 40 (Tap water sits at 40ppm)NO2 0GH 8KH 6pH 7.2CI2 0
