API Bio-Chem Stars, 20-Count

The Bio-Chem stars help establish a bacteria colony within your canister filter that will help keep your tank running smooth. A word of advice to those new to the hobby – DO NOT RINSE OFF THE STARS when cleaning your filter out. Set them aside in one of the baskets, and add back to the clean filter.

I purchased the API Chem Stars to use as the middle media for my ﹰFilstar ﹰL filter. I have a yellow bellied slider turtle that can dirty a tank quite quickly and was told that the Bio-chem stars will help support the eco system in the tank. The 20 stars contained in the package filled about 1/2-3/4 of my media basket. I’m sure another package would fit. Due to the size of my turtle, only 20-25 stars are recommended. When cleaning the filter, you need to make sure you don’t rinse out the basket with the chem stars because it will wash away all of the helpful bacteria. I’ve had the stars for a little over a month now and was expecting some sort of growth on them, but they are as clean as the day I put them in my filter. The stars are a good price for the amount you get and they will last for many months. I would definitely recommend this product and will purchase them again when they need to be replaced.