DIY CO2 isn't worth it on a tank this size you will need a 5g bucket setup worht of Sugar and yeast.no ferts yet. i have a 75 gallon bowfront. don't know the light and will check tonight. seem to have a lot of hair algae growth since starting co2. stem plants are growing but i do not see pearling. currently have my diy co2 inserted into my magnum canister intake. no reactor or diffuser. is that okay? what kind of ferts should i use?