I have a 90g frag tank with a Porcupine Pufferfish, Lionfish, Zebra Moray, Orange Toadfish, Dusky Jawfish, Marine flounder and an sub adult engineer goby ((the puffer and lionfish are getting moved to a bigger tank in the next year)) I first noticed my puffer fish acting weird like laying on the bottom and rubbing up against the sand. Then signs of egg appeared on his fins and eyes. My marine flounder is relatively new to my tank I got him this past two months and he has all of these red lesions all over his stomach that keeps getting worse in multiplying every day. My jawfish is acting lethargic and stressed and his fins have the similar lesions plus it seems like he has fin rot because some of his dorsal fin is rotting away. My lionfish, toadfish, moray and goby are all acting relatively normal but everything else is going to hell. The parameters are all where I want them to be so I don’t think its related to that. I had a smaller marine flounder die last week when i started to notice the fish acting weird. I’m treating the tank with Metroplex, Neoplex, Kanaplex plus fish oil and vitachem to boost their immune systems. I soaked all of the fish (separately) in a concentrated solution of metroplex, Neoplex, and vitachem for 5 minutes each once today. I soaked my puffer, jawfish and flounder in the same solution for 10 minutes each earlier tonight. They seem to be getting worse every day and I’m so scared because they are my babies. Please help! Any advice would be appreciated!!