I want to apologise in advance for long post.
I've had my male mantilla for around 6 - 8 months with absolutely no issues until a week ago. He lives with a smaller female motoro and a 20cm saratoga jardini - all of whom get along famously.
About a week ago i noticed he didnt eat very much, but i thought nothing of it because he ate like a pig earlier that day.
Since then he hasn't eaten anything I put in, is quite lethargic, very lazy and his breathing seems to be shallow. And for a few days he has been producing stringy green faeces. This is something I've never experienced with any fish/ray I've owned
When food is put into the tank he is unresponsive but the other ray and jardini haven't changed. Despite the fact he hasn't eaten anything in over 5 days, he doesn't seem to be losing weight but I have noticed that his disc margin ripples gently when he's sitting still.
He normally eats a good variety of food: pellets, krill, prawns, squid, brine shrimp, mussels, i sometimes crush small smount of veg into their food aswell. Sometimes they eat the veggies but most of the time they'll just spit them. I've tried to feed earthworms and even live snails to no avail (you know someone's desperate when they're willing to put snails in the tank). He used to be the best competitor in my tank.
I've never used any meds and i'm quite religious with my water quality. During the last few days I've been changing about 15-20L per day just in case there is something I'm missing. Also been adding some seachem stress coat and bumped up temp to 28 deg C.
Again, apologies for the long post but never experienced anything like this before.
I've had my male mantilla for around 6 - 8 months with absolutely no issues until a week ago. He lives with a smaller female motoro and a 20cm saratoga jardini - all of whom get along famously.
About a week ago i noticed he didnt eat very much, but i thought nothing of it because he ate like a pig earlier that day.
Since then he hasn't eaten anything I put in, is quite lethargic, very lazy and his breathing seems to be shallow. And for a few days he has been producing stringy green faeces. This is something I've never experienced with any fish/ray I've owned

When food is put into the tank he is unresponsive but the other ray and jardini haven't changed. Despite the fact he hasn't eaten anything in over 5 days, he doesn't seem to be losing weight but I have noticed that his disc margin ripples gently when he's sitting still.
He normally eats a good variety of food: pellets, krill, prawns, squid, brine shrimp, mussels, i sometimes crush small smount of veg into their food aswell. Sometimes they eat the veggies but most of the time they'll just spit them. I've tried to feed earthworms and even live snails to no avail (you know someone's desperate when they're willing to put snails in the tank). He used to be the best competitor in my tank.
I've never used any meds and i'm quite religious with my water quality. During the last few days I've been changing about 15-20L per day just in case there is something I'm missing. Also been adding some seachem stress coat and bumped up temp to 28 deg C.
Again, apologies for the long post but never experienced anything like this before.