i recently purchased a rubber lipped plecostomus mainly cuz i thought it looked kool as hell and i had it for upwards of 2 weeks maybe longer not certain on the numbers the other day i noticed it was on its side/back and this bummed me out a great deal as i went to retrieve the fish from the tank he moved and began to swim, albeit halfheartedly so i decided to leave him in the tank i looked a few hours later and he was on his side really and truly dead this time the skull plate that is characteristic of plecos had begun to separate this upset me a great deal... my current setup is i have a 5 or 10 gallon with 2 large albino African clawed frogs the female is gargantuan and is somewhat of a bully likely cuz she has no idea just how big she is and terrorizes the other denizens which are a small black mystery snail and a pleco whose species im not wholly certain of though its predominantly black but with yellowish mottling what mystifies me most is ive had the other pleco for months and it has thrived and almost tripled in size since i purchased it any help and advice would be greatly appreciated