callichthys catfish

I just thought of putting a Mom Olive pickle jar in my aquarium. The aquarium has 2 peacocks, an oscar, a sleeper goby, a callicthys cat, Raphael cat and 2 blood parrots. Will it be safe for them or is the glass different from the actual aquarium glass? I also have another set up with three...

I am looking to get a dragon goby for a 40 gallon tank. The tank already contains two peacocks and 2 mbunas a blood parrot and a callychthys cat. I also have a Senegal bichir, about 6 inches in a 20 gallon. Which would it be better with?

Has anyone tried putting a callichthys catfish with a senegal bichir? I have both that are about same size, 5 inches.