Hello sir congrats on your new pixie!

Let me first say the pixie you got is indeed an adspersus or giant so no worries in that department! He is very nice looking as well. Coco fiber or eco earth is the perfect substrate.

-The aggression you are seeing is perfectly normal for a growing pixie. From my experience I have noticed much more bold aggression for food from my growing males than my females but that is a complete guess based on experience as your pixie is too young to tell. Either way don't be nervous around him, if ur gonna clean his cage just reach in behind him with ur hand flat and grab him, he won't grab u unless u dangle ur fingers in a hesitant way in from of his face.

- As for a 50/50 or 60/40 mix of water and dry this is possible, but I completely avoid it for many reasons. Ammonia levels in the water, even with proper canister filtration will become extremely high from defication and urination. Not to mention the strain that your filter will have to suck water from a lowered level (8-9" of water). Not sure if you have witnessed defication from an adult pixie, but its a little different than a fish! an immediate water change is going to have be done no matter what!. I used straight eco earth (coco) with a water dish that is large enough for the frog to easiliy get in and out of. Out of the 20 or so adults I have, I might clean of poo from the actual eco earth once a month? it is very uncommon for my frogs to NOT deficate in their water bowls. I'd say 98% of the time I simply grab the bowl, and dump it into the toilet. They are essentially water bowl trained. Back to the 50/50 set up, heating it poses a problem as well. Your frog is going to want to spend the majority of its time in the water side, which makes heating incredibly difficult because for proper digestion you will probly have to heat the water unless you have rather warm ambient temps from your house. I keep all my frogs at 82-84 warm end, 76 every where else. Needless to say the 50/50 idea is such an awesome idea! but I do not use it because my frogs sitting in their own ammonia scares me. ( Oh and 8-9 inches is too deep, aim for the frog to not have to strain to have its chin above the water, thats the best rule of thumb for water depth, a full grown pixie may not be 8-9 inches tall!). A heater in the water section scares me as well.

-I'd aim to have a glass or plexi glass top to keep heat and humidity in it will save you a lot of trouble!.

-Heating the tank with an above tank heat emitter would be your best bet, or possibly a heat pad on the side of the tank (not on the bottom because they can burrow and burn themselves)

-Crickets are great to feed to pixies, I just prefer earth worms . You can buy them from walmart for 3 bucks a container (20 worms) and it is a very cost efficient, easy way to feed young pixies and they absolutely love it. I have fed some of my frogs earth worms from quarter size to 2-3 lbs and have never had to add any type of suppliment.

http://www.frogforum.net/african-bul...caresheet.html :::: this caresheet provided as a sticky on the top of this forum section is the best compiled info on ABF I have ever seen and would be an excellent read for you when you have some down time!

Hope I could help!