Question
My 5-gal white plastic tank with peaty water and peat soil.  
Water Hyacinths are added.  Tank receives noon to afternoon
sun.  A homemade CO2 generator feeds it.  Natural prey
grow in it and I van also add pond water

Answer
well the tank sounds good peat soil is excellent sun is good but make sure you don't let the sun burn them i think the co2 thing could help...but i have no idea about the Water Hyacinths if they are a plant make sure the have the same sun light and humidity requirements or it might die