Did you have to swap him in and out of it? Sounds interesting, my wild caught senegalus walks very well on the carpetSure thing, bichir are air breathers and can live on land if they stay moistened. I used a glass dome and humidifiers to create a +100% humidity saturation. With a fine rolled gravel substrate. In about 3 years he could "walk" with decent proficiency.
I should also note that the longest he was ever out of water was almost a week in one stretch. And he was never removed while he had his external gills.
