Ok someone help...Ive checked some site but i cant find and answer to my problem. I have a 5 gal hex tant for my betta. I had it running for about a week before i found the betta i wanted. I put some java moss in the tank along with 3 bamboo shoots. My betta is VERY agresive so he moved around alot the first few days. I feed him 2 times a day. He ate fine. I didnt over feed just feed him a pelt of betta bites in the after noon and one in the evening. The second day the bettas fins and tail started to close up. On the thrid day some white fluf was forming on the bamboo so i took it out. Over the next few days the bettas fins became more clamped and stiff almost rope like. Now he seems to spend most of his time on the bottom under java moss then comes out from time to time goes to the top and hides behind the filter intake. i did put aquarium salt in the tankand cycle and tap water conditioner but i dont know what the problem is. All i have in the tank is gravel and java moss. I did a Ammonia test but readings are at 0. I used Betta fix remedy 2 days in a row because when i bought him the tip of his tail was transparent so i thought this would help. I did do a water change yesterday. Whats wrong? 
He has long large fins...i would reallyhate to get that...
damn! when i bought it it was black on the edges of the tail and transparent before that...pet store dude said his tail was growing.... 
well i have bad news....i woke up this morning at 4am he as fine then and then i woke up at 9 to find him dead 
but his fins where covered with white fluf im guessing mold but nothing was there at 4am?
