I'd be after a male anaconda which grows much smaller than the females shown in that tank (around 6-8ft) so should be much more manageable! I dont think I'd feel too comfortable cleaning out a massive 15ft females enclosure!!Well, I don't know about the skimmer, but Anacondas prefer to poo in water as far as I understand. They're the one constrictor type I haven't kept, so I'm no expert. A small snake that eats a mouse or two makes small poo. A 15' snake that just ate 5 rabbits will make a poo the size of an elephant, and the smell will make you want to cry. It's terrible. I wouldn't trust that mess to a skimmer. Even if the bulk of the waste could be dissipated or removed, the subsequent water fouling wouldn't be ok, either.That would be my biggest concern on keeping the fish and snake together. With that type of bio load, you have potentially lethal water all the time, unless you have thousands of gallons. I can't remember what size you were looking to build, so maybe that isn't an issue. I wouldn't be terribly worried about the snake eating the fish. It could happen, but if you've kept large constrictors before, I'm sure you know about feeding them. You'd need to remove him from his enclosure once a week or so, have a feeding pen of some sort for him, feed him whatever you choose, leave him be for a few hours to digest, then move him back to the original enclosure. If you learn his cycle, you may be able to keep the majority of his waste out of the water, but really, it's going to get bad.
6"-10" of water? 35-50gal? That's a school of Oscars....that tank is 10'-15' long....
