Hi, I’ve got a 200 litre tank and my cardinals and plecs have been covered in white spot for around 1 weeks now. I’ve been dosing esha exit and esha 2000 for a week now with very little improvement. I’m running two sponge filters with no carbon in the tank. The only thing slightly higher is the nitrate which I have been doing regular water changes to try lower it. Possibly caused by feeding a bit too often. I’m tempted to try Aqualife protozin as I’m not having much luck with esha. Any ideas or advice?