bog log to lower the ph, and nothing sharp the aro can spazz out and hurt himself. Good filtration and o2, don't have too strong of a current but some. Aro's like to rest in floating plants. I use 2 clip on desk lamps on each side with amber bulbs and it really looks cool with just that on. It also makes them calmer. Test your parameters and get one heck of a good strong top, they can go thru 2 panes of glass, and he will try to jump out!what r the requirements for housing a jardini?i plan on gettin 1 for my show tank in the living room...any suggestions for decorations if any...i dunno the dimensions of my tank but its 250 gallons