"I hate waste, and this product causes it. The grips that actually hold the veggies are located about half an inch behind the end of the clip, which means that there is half an inch of veggie that the fish and snails can't reach. Other clips have these grips at the very end of the clip so you only need to hide as much veggie as necessary to secure it in the grip. It's not a big deal in my freshwater tank, as I use spinach there and the stems are long enough to make the distance, but if I ever have to buy another one, I will choose a different one that is designed better."