Ryukin laying on bottom :(

[Miyavp]

So my big ryukin is just laying on the bottom belly up. This happened last night after I fed him some cooked brocolli. Literally only a few hours before he was totally fine. Now he's just laying there. Breathing normally but he cant swim straight. Does this sound like SBD? I thought fish with SBD floated? He was headstanding before he went into laying at the bottom of the tank. This is all happening so fast

 

[Fishanatic]

This sounds like sbd, though even if he is not floating to the surface, this looks like it.
Try fasting him for 1-3 days, then give him peas

 

[Miyavp]

Yeah he's started finally pooping since I posted this. Thinking I should'nt feed brocoli anymore.