I have some Miracle Grow Natures Care Garden Soil in a 10 gallon capped and soaking for a few weeks with weekly water changes under blackout with no lights. My first go round with this soil produced very cloudy water for a while so I’m giving it a chance to break down a little and leach some tannins and stuff before planting. However…I gotta ask how many individual tiger lotus plants you have in this tank. Is it just two? I’m planning on filling in alot of the tanks area with Tiger lotus the way you have. Wondering how many bulbs to get.I run two 10 gallon tanks and I have had some great successes using regular miracle grow potting soil ( I did not mineralize). A small bit of osmocote ,and a cap of about 1-2 inches of fluorite sand or regular sand. I have budget hygger lights and do not inject Co2. I do have aquaclear HOB filters on both. The tanks are over one year old. I can see through the underside of the tanks and I'm pretty sure the soil has nearly fully decomposed to humus. The tank capped with fluorite has all of my red plants in it and they are spectacular. I do have some deeply rooted plants in both tanks along with a small army of Malaysian trumpets so anaerobic areas have never been an issue in either tank. I just also recently started a 6 gallon long using the same method. The shorter height tank has had explosive results. I am also using a fluval 3.0 on the 6 gallon so the better light helps. The tank has been active for about 2 months now. I dont think theres to much need to overcomplicate the substrate preparation process.
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