I place this cement Styroam fish tank in my apartment's balcony for keeping fancy and illness guppy fishes.
I added Limnobium laevigatum and Thai Water Caltrop (Ludwigia sedioides) before and seem they are going very well when they block the tank's surface very fast just in 4-7 days.
Because of that, I decided to move them out to help the fish get more oxygen and also help me in checking my fishes easier.
The tank also has Epipremnum aureum which is really great for the ecosystem of the tank.
I feel the tank with a layer of cement is really good for benefit bacteria, that's why my shrimps grow and breading so fast, also my illness fishes will go better just few days after moving them to the tank.
You should try that, Epipremnum aureum in a cement tank is good for fishes like guppy.
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