I still really recommend a canister filter for these frogs. I really like my Eheim 2217, I just broke mine down and cleaned it and yeah it was gross the filtration quality on these units is really great, theyre really quiet and they are workhorses that last for years and years and years. Can't really condone this. You're right though, in the wild Xenopus will catch and eat anything it can whenever it can. However, american bullfrogs aren't something they'd eat in nature either since they come from different continents and quite honestly I really worry about trans-amphibian diseases and parasites. It's really not something you can judge by looking at the specimen and assuming it's safe. I would also imagine that 'salt treating' the tadpoles wasn't a great idea either, I would also wager they are quite salt intolerant. I just don't see the point of this I guess, besides feeding your frogs at a very high cost.. Mostly arthropods, worms, insect larvae, daphnia.. on seldom occasions will prey upon tadpoles (this usually happens when over crowded), small fish, mammals, even small avians. I once had a huge chart of a study where they went out and captured a bunch of wild Xenopus and flushed their stomach contents if I can find it you may want to check it out. It was very interesting (and backs my statement up). They're predators but also scavengers, will scavenge upon dead animals, matter. Pellets aren't bad for them, many frogs live a very long life on pellets alone. I know Terry feeds his reptomin exclusively and his frogs are over a decade old. If nothing else they help round the diet out. It's impossible to feed a captive animal a diet as diverse as it would have in the wild. Unless you plan on raising a hundred different species of arthropods. I have to ask but WHY crayfish? If you want to get all natural on your frogs diet why even consider this species? Xenopus are native to Sub-Sahara Africa and crawfish don't exist in Africa besides introduced/invasive species (raised for food). Shrimp contain
thiaminase so I would advise against shrimp entirely. Could breed live bearers or Cichlid Convict fry as long as you kept the tanks well maintained and not overstocked you could do this. But yes one sick fish and you got problems. Last year I bred black mollies to feed to my frogs (I was given a ton of these fish 30+ without much else to do with them) in a 55 gallon aquarium. It was more trouble than it was worth, the more I read about black mollies proved that they were a brackish/saltwater fish if you REALLY want to keep them in optimal condition. They also tend to get calamus worms when kept in softer, fresh water. I mostly fed my frogs the fry when they were juveniles and it wasn't really even fun to watch, Xenopus are nocturnal animals by nature and will simply wait for the lights to go out to begin hunting resting, placid fish. I never *saw* them once eat a fish, but they certainly did eat them over time. I once came downstairs at night for something and turned on the lights and cause one of my frogs swallowing a molly, that's about the extent of the 'entertainment' value I've gotten with live feedings. Another bad thing about feeder fish in my opinion is these frogs don't all have the same instinct to hunt. I have one frog who is just a predatory monster and cleaned house and another frog who is fairly indifferent. It's hard to ensure both are fed well if you just toss food in and see what happens. This is why I always feed my frogs by hand and mostly earthworms. Every frog gets fed the same in my tank. =P Contain loads of thiaminase too. Though I highly doubt their fat content is really that huge of a deal, fish fat is actually oil and I would imagine a Xenopus would digest it fine. Now mammal fat.. that's different. Either way yes, goldfish are **** for feeders, they're pond fish and I wish more people realized this. Parasites, disease, and thiaminase make this species inappropriate. Baby Tears are a carpeting plant, they're hard to do with clawed frogs as they tend to kick these plants up faster than they grow. They also need fertilizers, CO2, and high light and your frogs will not like any of that in their environment. I tried to grow dwarf hair grass in my tank way back, it was a waste of money and time. Xenopus kick up substrate as a defensive maneuver, they also kick up plants. Personally I would really like to get a 125 gallon tank and do a paludarium for my frogs some day. It would look really cool, at least.