i am using fluval stratum in 3 tanks and its ok. im also using UP aqua soil in my 75g and really like it. it is about the same as ADA from what i can tell but much cheaper. i got it on GLA.
other then aqua soils the closest thing would be caped dirt. blasting sand is a cheap cap at only $9 a bag.
8g Fluval 1M CT Betta
125g 5 Blood parrots, 1 Green Severum, 8 Dension Barbs, 10 Yoyo Loaches, 1 RTS
75g Angelfish, 3 EBGR, 4 Siames Alage Eaters, 12 Harlequin Rasboars, 1 BN Pleco, 1 Swordtail
33g long cherry shrimp, 8 pygmy corys, 5 ottos
15g 2 GBR