I wish I can get snails & shrimps so easily from where I live. The only way I can get snails & shrimps are by buying them online. I prefer not to buy live animal & shipping them to my house. Especially in this covid time where package can get stuck somewhere. If you tried PSB/purple bacteria, I really appreciate it if you can let me know the progress in your planted tank.EM-1 is also used for aquaculture, there is is a web i use SCD probiotics, the part for aquaculture. the malaysian trumpet snails might help you with your detritus. i dont vacum my gravel cause is completely cover in plants and thats why i am interested in that bacteria. i called Microbe-lift and they said that Special Blend has some of the PSB, no wonder i like that product. besides, for some reason almost everytime i use a waste control bacteria one of my goldfish gets fin tail rot with red veins on his caudal fin. Microbe Lift has also one ," gravel and substrate cleaner" where the water gets very dark for a couple of days. i am wating for Tom Barr to see what he has to say about this PSB..