Filter build is now complete! Now i just have to buy some tubing and buy another overflow box and have it all channel into the white bucket up top. currently have the sump running just running air through the new k1. nothing running back into the tank yet. i currently have water from my ray tank that has the ammonia of .5-1 in it. with the air running it should do some sort of good though it'll only be for a few days till it starts getting hooked up to my tank. I am going to buy some pothos and make a small plant holder for some pothos to offset some of the nitrates. I am comfident and almost 100% sure the pothos will not eliminate the Nitrates, but if it could just remove even 5 ppm from the total before i do my 2 weekly water changes, it would be worth the cost!
Accprdomg tp K1 and UrauJoey, 100 Liters of k1 can filter 1 lbs of food a day, from my estimate, for 4 rays and a black arowana 2 tilapia fillets or 10 shrimp is about 1 lbs. To compensate for anymore bacteria needed i have over 60lbs of stagnant filter media (lava rock, ceramic media etc.) and pothos.
So far what i got -
120 Liters of K1 - 140$
1744 GPH Air pump - 75$
2 Barrels - 40$
4 in pipe - 8$
4 in pipe cap - 8$
4 in Union - 30$
40 lbs of Lava rock - 50$
Pothos - 10$
The rest of the filter media was from a long time ago so i dont know the pricing but this is pretty much all you need for this filter...
Total cost is about 360$ from what i spent. But the actual total will be around 450$ because of the pump to return the water. and w.e overflow and other misc. stuff you may need for it. Hope this helps out anyone who is interested in this build. I will post pictures and videos later on when the setup is done.