I was testing the water in my cycling 20-long tonight, when I noticed a weird white buildup on the suction cups of the heater. Here's a photo:
You can see where I rubbed a bit off: it dispersed like a powder, making me think this is some sort of precipitate. I'm doing a fishless cycle with ammonium chloride. Are these deposits a result of that? Any potential problems I should be aware of?
Now open: "JJ&J's Seafood Buffet
" 20g long planted freshwater - Sunset Fire Platy (x5 adults, many young (argh)),Neon Tetras (x11), x3 amano shrimp, 40 lbs. Eco-Complete, AC 50 + AC 20, Finnex Planted+ 8 hours per day, Seachem ferts.