FLUVAL FLEX 15, Freshwater, nano fish tank. 3 months old.

Hi! I wanted to share with you my idea for nano freshwater tank based on Fluval Flex 15. As you can see main space in aquarium is occupied by spider wood with java moss and fire moss on it. Water looks a little milky on camera but in person not that much. I do every two weeks have to change some water but more because of tannis leaching from spider wood. Anyhow, if you have any comments or suggestions let me know!
And here are the things I'm using here.
Pump is VIVOSUN 210GPH
Dwarf Hairgrass I bought on eBay. same for Dwarf Repens (small leafy plants)
Species inside:
Fish: Blue eyed rainbowfish, celestial pearl danios, bloodfin tetra and on hill stream loach.
Shrimp: a lot of blue velvet neocaridina and yellow neocaridina, 6 Amano.