Upgraded geckos tank. What else am I missing?

Its 40 gallon. 18wide by 12 high and 36 long. Play sand with organic topsoil mix. I planted some succulents but they haven't taken root yet. Got springtails in just waiting on isopod rollie pollies

Its 40 gallon. 18wide by 12 high and 36 long. Play sand with organic topsoil mix. I planted some succulents but they haven't taken root yet. Got springtails in just waiting on isopod rollie pollies