Bests & Worsts Reviews from Amazon

((Update below original review)) Prior to purchase and after reading some reviews, I thought I would have to put blockers in between the tank outputs to prevent the bettas from getting into the other tanks... To prevent this KEEP THE LIDS ON - the lids have built-in grates that prevent this. Water flow - TURN that little pump all the way DOWN (default is all the way high, low & high marked on the pump). Put a small submersible heater in the bottom (unless your room temperature is 76-80), it fits and there is an opening for the cord - pump cord fits through it as well. The tank is quiet - initially, I was worried because of the "waterfall" in the last compartment, but as long as the water level is at the "Max" line - all is quiet! Note that initial filling was done by adding water halfway to each compartment and the filter reservoir, turning on the pump and then raising water level until Max reached (Max water level indicated on the front of Betta Falls). The filter cartridge is "Aqueon QuietFlow Filter Cartridge, Medium," (available for purchase on Amazon or at Petco). I added live plants and I'm letting the tank cycle before adding bettas (about a week). The water flow (dialed down to low) is not pushing the plants around, so it's enough to keep the water circulated with the heater. I'll edit this review after adding bettas if there are any problems, though I don't expect any. ~~~~~~~~~~~~~~ 7/16/18 Update Made some modifications to the tank (photos attached). I took some thin plastic grate (purchased from a home improvement store, very cheap), cut it, and secured it over the grates with small zip ties. I did this because the betta in the first tank was getting his tail sucked through (he was staying in the tank, but unable to move). This modification fixed that. I went ahead and moved this particular betta to the last tank because he's small and the flow there is the least. I also affixed the plastic grate in the last tank. The middle betta is perfectly fine and did not have any trouble, however, I added the plastic grate to his tank as well just in case. I trimmed his grate to just below the water release point though because the longer grate was creating more of a suction and he spends more time at the top. I recommend putting a larger betta in the first tank. The older betta I moved there is completely happy. I do turn off the filter to feed them (left off for about five minutes). The leaves in the photos are Indian Almond Leaves (beneficial to bettas and lowers the ph naturally).