AQUARIUM: 5 GALLON EXPERIMENTCO2 injected (pH controlled)Metal Halide light (50-120 umol/m2/s measured)dKh 4.5 (prepared from R/O water)Conductivity: 285 microSiemens (155 ppm)pH 6.95-7.05Temp 75-88 F (no heater or chiller)Plants: Riccia Fluitans, Java Fern, Micro-sword grass, Star Lily, P. Gayi, Baby Tears (Micranthemum umbrosum), and Java Moss. Substrate: Back-yard soil, depth 0.5 inch topped with 2mm fine gravel, depth 1.0 inch. Maintenance: No fertilizers or dosing used. Water changes about once every three months. Nitrates are not detectable with common test kits. Algae is extremely minimal.Fish and inverts: Galaxy Rasboras, Cherry Shrimp. and snails. Fish do not get fed any flake food or pellets ever. They only eat live or frozen whole food, i.e. blood worms, daphnia, brine shrimp, spiders, fruit fly larve, and plants.
Tank duration as of this photo: 6 months. Lots of trimming.