How could I turn this 
(the pvc hole to the right)
Into a cave type deal... I have a sun cat and since I switchted the tank up I took out his favorite hole to hide in and since then he has been non stop swiming around doing circles on th e glass.... Its a pvc tube angleg and covered up into the sand... He can get head first into it but I didnt think about him turming around... So I need a turn aroud spot at the back but idk how I would accomplish th is and still keep it covered?
Sent from my SPH-D710 using MonsterAquariaNetwork App

(the pvc hole to the right)
Into a cave type deal... I have a sun cat and since I switchted the tank up I took out his favorite hole to hide in and since then he has been non stop swiming around doing circles on th e glass.... Its a pvc tube angleg and covered up into the sand... He can get head first into it but I didnt think about him turming around... So I need a turn aroud spot at the back but idk how I would accomplish th is and still keep it covered?
Sent from my SPH-D710 using MonsterAquariaNetwork App
