Especially if your tank runs with a soil-based substrate, a suitably-sized pair of tweezers is very important when it comes to planting. When planted without tweezers, aquatic plants have a far higher tendency to become buoyant, and, in addition, if you plant with your fingers you have a high risk of destroying soil granules, which may lead to early compaction of the substrate.
Tweezers come in many forms and lengths: some are curved, others are straight, some have a very fine point, some a somewhat wider one. Ground-covering plants ought to be planted with a fine pair of tweezers, coarser designs are suitable for large tuberous plants or water plants with a large rhizome.A good pair of tweezers needs to have well-balanced tension in order to hold the plants securely without squeezing them too hard.
Short tweezers transmit the tensioning force more directly and have a better manoeuvrability when it comes to planting in restricted spaces. Longer tweezers help aquascapers in accessing difficult-to-reach spaces in the layout.