what substrate is this ? i always see it in planted tanks but never know what mix it is . love the look1yr ⋅ Useful-Journalist156 ⋅ r/PlantedTank
recommendations for aqua soil/substrate and fertilizers for my first high tech tank?8mo ⋅ Useful-Journalist156 ⋅ r/PlantedTank
should i keep my aquaclear 30 or replace it and just run this big sponge filter?11mo ⋅ Useful-Journalist156 ⋅ r/PlantedTank