It’s a new tank lol I just set up 6g (24 litre) tank, with water from the tank mechanical filter? Do you ever have an issue with breeding behavior since you have the attachment for filling ? https://www.amazon.com/Python-Hands-Free-Spill-Aquarium-Green/dp/B01654SSXA/ref=pd_bxgy_199_img_2?_encoding=UTF8&pd_rd_i=B01654SSXA&pd_rd_r=7PW6EGCHF65V7YEA0EAE&pd_rd_w=CXvvi&pd_rd_wg=pOmgv&psc=1&refRID=7PW6EGCHF65V7YEA0EAE.