[Snelly40]

i had HUGE nitrate issues, and was doing water changes, cleaning sponges and could not figure it out, then one day i dropped a piece of a powerhead in the rear compartment and in trying to fish it out, felt a sponge way out of reach and site. Took it out and it was black, gross, then found one in the middle chamber, blaaaaaack, groooooosssser. Once these were gone my tank lit up and everything got so much better. Id def add in the rubble and cheato too and it will be great and maybe some purigen in the third chamber for some clarity and it will be beautiful