To prevent algae, you'll need to balance fert, lights and CO2. I'm not too sure about Gex soil but I believe its like ADA that has some fert properties. There might be a real possibility of too much fert when you cut down on the other 2 variables.
A friend of mine has a filterless tank but wc has to be done almost everyday... too much hard work for meI see more disadvantages in not using a filter bro.
Bookmarks