(please check with a Mr Joel Ashton wildlife pond guy on RU-vid but he might say to put in some more oxygenators/take the lead weights of the oxygenators/get in some hard rushes/ emergent tall rush and some washed aquatic sand and gravel and few more stones to line that bare pond liner and then you’ll have great habitat for dragonfly and damselfly nymphs eggs etc. Brooklime marginal Spiked water milfoil oxygenator just in the pond Frogbit (literally throw it in and it’ll do great and it’s like a smaller waterlilly) Dwarf Marsh Marigold marginal Dwarf Lesser spearwort marginal Water Geum marginal Water soldiers (just place in the water) as they all easy to plant or just place on the water barefoot and native and look great and easy to care for and the wildlife love them and great looking too.