Hi i have a palnted 50g tank, just realised i need substrate like florabase, i dont want to start from the begining again as i have just finished my cycle........is there any way in which i could do this without taking all the good bacteria out, i will be using the same gravel again, am i right in thinking this stuff goes under the gravel or can i just mix something in, doing this would mean i have to empty the whole tank out, there must be a way, an easier way. Do i need this stuff and will it make a difference to my plants and also does it have any negative effects on the water ie cloudy or harder to clean the gravel

Any help really appreciate, im a newb but im really trin!!!!!!!!!! oh by the way do i even add the gravel back on top of thiis stuff or not

Thanks