Have you checked out the El Natural forum since you want to keep it low cost? A soil layer is a great nutrient sink. I've used it under Eco Complete with good results and I only dose gluteraldehyde (Excel substitute). I've never used fluorite, but I think having soil under it would help keep you from needing to dose ferts.
I've heard that vals and some mosses are sensitive to Excel but I haven't had that problem as long as I don't overdose or dose directly on the plant.
In my 29 with soil under Eco Complete, 65w CF plus some bright indirect sunlight I have very good luck growing Ludwigia repens, L arcuata, L glanduloso, Bacopa australis, Cyperus helferi (wait until the tank is mature or it attracts algae), Blyxa japonica, Myriophyllum mattogrossense, all java ferns, Bolbitis heudelotii, Sagittaria subulata, Ranunculus inundates, Potomogeton gayii (had to remove it because it kept sending runners everywhere, ditto with Italian val), and various Anubias and mosses. There are a lot of plants that could do well in your tank, and as your water seems similar to mine (soft and slightly acidic) I think the plants I've listed have a good chance of doing well for you as long as you provide the nutrients they need either through dosing ferts or using a soil underlayer and feeding your fish. You can check the plantfinder to see what else would work for you. A lot depends on what you like the look of and what you want to do with your tank.
You have a relatively low fish load so you could do with increasing your number of gold tetra to at about 8 - they will behave more naturally in a larger group.
I've heard that vals and some mosses are sensitive to Excel but I haven't had that problem as long as I don't overdose or dose directly on the plant.
In my 29 with soil under Eco Complete, 65w CF plus some bright indirect sunlight I have very good luck growing Ludwigia repens, L arcuata, L glanduloso, Bacopa australis, Cyperus helferi (wait until the tank is mature or it attracts algae), Blyxa japonica, Myriophyllum mattogrossense, all java ferns, Bolbitis heudelotii, Sagittaria subulata, Ranunculus inundates, Potomogeton gayii (had to remove it because it kept sending runners everywhere, ditto with Italian val), and various Anubias and mosses. There are a lot of plants that could do well in your tank, and as your water seems similar to mine (soft and slightly acidic) I think the plants I've listed have a good chance of doing well for you as long as you provide the nutrients they need either through dosing ferts or using a soil underlayer and feeding your fish. You can check the plantfinder to see what else would work for you. A lot depends on what you like the look of and what you want to do with your tank.
You have a relatively low fish load so you could do with increasing your number of gold tetra to at about 8 - they will behave more naturally in a larger group.
