I have a 10g tank. Its been set up for a while. It had two cichlids in it for a grow out. A betta was then put in it but now there is guppies. I got three female guppies on Sunday so 4-5 days ago. They are now pooping white poop. Its not stringie... it looks the same as regular poop but clear. I do believe they have been eating fine every day. I just put in two day old molly fry today. Five of them. I noticed the poop this morning. There see some long pieces and i don't know what it is... the cichlids that i had in there about 3 weeks ago stopped eating and had a parasite which i treated with api general treatment before selling them... this isn't a parasite is it!?!? I REALLY hope that it is not. Please help!