I switched to sand in my Jar tank a few days ago, and it seems that the filter propeller got blocked by the sand and the filter gave out yesterday night at about 11PM, i could not move the filter to clean it because it was too close to the wall, and stuck so i had to wait till today after i did a waterchange so i could move the tank foreward. ( the tank had a bubbler running all night) ..... but now i tested the water, and the NitrItes are rising, and i got white "stuff" on the glass. what can it be??? and what should i do about the NitrItes and the white stuff...??? WILL THIS HURT THE JARDINI???????????
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