The best advice I can give you is, If it aint broke, don't fix it.
The good news is that since so many of your plants are rooted, shove some root tabs into the gravel under them to give them a boost. That way you don't change the chemistry of the water column. They work wonders. Don't stir up the gravel tho- you don't want the ferts released into the water column.
If you wanted to grow more demanding plants, then the tank with pressurized CO2 is the place to start with a modified EI dosing schedule, but only if you can keep on schedule with water changes. If you are going to stick to easy to grow plants like you have now, I think dosing is only going to require you to trim more often. The plants you have look great now.
I think the one thing you are missing- from an artistic scaping standpoint is hardscape. Rocks and driftwood. Just make sure whatever you add matches. Don't mix different colored rocks and different species of wood- or even different styles of wood. If you want to use stumps- then use stumps of a specific type of wood. If you want to use manzanita, then use branches of similar thickness. If you are going to use rocks, try to find ones similar in color to your substrate, and make sure they are all of the same type. And use plenty of them- look to the AGA competition entries for insipriration- You'll notice all the best looking tanks have a cohesive hardscape. Not a rock here or there, but a cohesive, consistant, and extensive hardscape. You're going to be shocked at how much hardscape can dissapear in a densely planted tank- so gets lots of whatever you decide on. I've put almost an entire milk crate full of rocks into my 90- and now you can barely see them.
The good news is that since so many of your plants are rooted, shove some root tabs into the gravel under them to give them a boost. That way you don't change the chemistry of the water column. They work wonders. Don't stir up the gravel tho- you don't want the ferts released into the water column.
If you wanted to grow more demanding plants, then the tank with pressurized CO2 is the place to start with a modified EI dosing schedule, but only if you can keep on schedule with water changes. If you are going to stick to easy to grow plants like you have now, I think dosing is only going to require you to trim more often. The plants you have look great now.
I think the one thing you are missing- from an artistic scaping standpoint is hardscape. Rocks and driftwood. Just make sure whatever you add matches. Don't mix different colored rocks and different species of wood- or even different styles of wood. If you want to use stumps- then use stumps of a specific type of wood. If you want to use manzanita, then use branches of similar thickness. If you are going to use rocks, try to find ones similar in color to your substrate, and make sure they are all of the same type. And use plenty of them- look to the AGA competition entries for insipriration- You'll notice all the best looking tanks have a cohesive hardscape. Not a rock here or there, but a cohesive, consistant, and extensive hardscape. You're going to be shocked at how much hardscape can dissapear in a densely planted tank- so gets lots of whatever you decide on. I've put almost an entire milk crate full of rocks into my 90- and now you can barely see them.
