Try to get him to eat peas, it like a laxative to fish, take the skin off the pea before you give it to him. If he won't eat it you can do a force feedI have a 3 year old flowerhorn and he appears to be constipated and hasn't eaten in 12 days. We have tried treating his tank with epsom salt, general cure and now Metroplex. We suspect he has swallowed some of the substrate that we have since removed.
Can we try massaging his belly to help him??
We just want to help him and we sure don't want to lose him!!