Thanks. =) I've named all my fish after Slytherins so far.
The only problem I have with getting him more hiding places is that some of the caves in the pet store have such sharp edges... There was one I was going to get for Salazar before he died but as soon as I picked it up I realized it would end up messing up his tail... And Regulus has such long fins... I could get more silk plants, but he seems to really like having things to go inside of. I guess I'll find something.
That's the thing I really like about my plakat, Severus. He's much easier to buy things for. His tail never seems to have any problems, he's never had problems dealing with the current from filters, etc. But I do think Reg's fins are beautiful, even if they make finding suitable decorations a little more challenging.