What do people use as substrate dividers? I am thinking of using some thing plastic, but instead of dividing substrate, want to keep certain plants from spreading outside of certain areas.
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~30 Rummy-nose Tetras, ~30 Balloon Lamp-eye Tetras, 2 Bristlenose Plecos, 4 German Blue Rams, 1 Rainbow Shark ~15 Amano Shrimp, 8 Roseline Sharks, 3 Clown Loaches, 2 SAEs
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