ALEGI Aquarium Fish Tank Divider Plastic Egg Crate Filter Bottom Tray, S

Works well to stop my toddler from throwing things in the tank. It was pretty easy to cut to make room for my filter and heater. It works well for what I needed it for.

I used these to level up the plants. Works perfectly with my moving cart.

I found these easy to trim and good looking. They fit together very tight. You can't put anything heavy on them though. Recommended.

The tabs are finicky and break if you push too hard. They were difficult to assemble but have held up for over a year for us.

I needed something to put in my windows to keep my cat from pushing/plucking on the screen. I like to open the partially to allow in fresh air when I'm home, but little fur-feet is determined to figure out an escape route. These are sturdy and work well for my purpose. Luckily, they come in numbers that allow me to put 3 sided by side in the windows I open, with some overlap. She can't pull them out as long as the window isn't opened bigger than the dimensions of the product. Solved my problem!

These are sturdy sections of eggcrate that are easy to assemble by hammering the pieces together. Easily adapt to any size you desire by using snip plyers or flush cutters. Great for an economical aquarium top to prevent fish from jumping suicide.

These "egg carton" sheets are as pictured beside the description, but the description says that they are square--about 11.5 x 11.5 inches. They can be made square by connecting two pieces together, and in fact you can connect any number to make any size, as long as you have enough components. However connecting two pieces together is quite difficult. The description also implies that there is a uniform thickness of 7.5 mm (about 0.3 inches) across the sheet, but this thickness only applies to the main cross-hatching squares, which are 2.2 cm on a side. Each of these larger squares are subdivided into four half-size squares, but the thickness on the sides of these is only about 2 mm, rather than 7.5 mm. These can still work for most applications if you can manage to connect them (I couldn't, but I didn't need the larger size), but a more complete description would have been helpful.

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