I really like the fire eel and have read that they like to burrow. I was thinking that anything apart from sand may damage them? I am also thinking about the aquascaping side of it. I currently have rocks etc. but again I read that these can damage the eel as they scrape over them. I realise I have to build some "caves" or hiding places for my plec, feather synodontis, and yoyo-yo loachs.
The other question I have is plants! I gave up trying to plant our tank years ago as they would get ripped out or if they managed to stay planted they made it harder to vacuum the gravel on our weekly water change and clean.
How do people manage to keep their tanks planted and also adequately clean the substrate?