I'm a planted newbie and I've had my low light tank for a few months. My crypts and java fern are doing great. I use the Eco Complete Black Substrate.
Thanks for the info. Here's a photo.Pic of your current substrate? If it is small in grain size it could work if you made it deeper, otherwise you would want to try using something else
crypts and java fern are great low light start plants, as are anubias and dwarf sag and red tiger lotus
yah, you should use a different substrate lol
I'm not sure what level of lighting the light you have over your tank is considered, so I'm not sure how nutritious of a substrate you should bother with.
I feel like, for a tank that already has fish in it, it would be easier to just replace the substrate with Eco-Complete or Flourite. I know that a single bag of Eco Complete was more than enough for my 10 gallon. You could also look into putting some root tabs into the gravel for extra nutrition for any root feeding plants you do acquire.
You might also just find it better to add liquid ferts or by the raw dry salts that compose these liquid ferts and dose that for your tank, it would be more beneficial for plants that take nutrients from the water column.
Find out what level of lighting that light is considered for your tank and then we can more easily discuss what plant choices make sense in your tank.