Pectoral Fins have Bloody Streaks

[jimmy]

My weather loach has bloody streaks in his pectoral fins and has seemed extremely lazy over the last few days. i have treated him with a half dose of tetramedica general tonic but he still hasnt moved very much, my other loach is fine and seems to have bags of energy, what else can i do?[/b]

[The-Wolf]

bloody streaks in the fins is an indication of septicemia (blood poisioning)

what are your water parameters?

[mistergreen]

yeah, what he said..
do a 50% water change. It's due to bad water conditions.
It can be cured with anti-biotics.