Hey Y'all

I don't understand it at all.

When doing a search, I can't find Schuran Nitrate reactor.

I can see Schuran Nitrate filter, or a Calcium Reactor, Can't see a Nitrate reactor though.

Even the calcium reactor looks a bit technical for me, as its made for Marine, eg: it mentions using coral.
I need it for Freshwater Tropical, just to wipe out my Hair algae.

Is there not a simpler way, such as dosing directly with some form of nitrate regularly to ensure that the nitrate stays at a steady level ? ?

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3ft X 2ft Tank & 2 Small Quarantene Tanks

1 pearl Gourami 1 Sword tail
4 Upside down Catfish 2 Flying Foxes
1 Angel 4 Corys
1 Horse Faced Loach 1 Rainbow Fish
2 Congo Tetra's 3 Dwarf Suckerfish
3 Lemon tetra's 3 Red Phantom Tetra's
I Bristlenose 4 BN Fry
Plants

3 Lilly's 3 Onion bulbs
3 various other plants