yesterday while i was not home my sister dumped about 50x extra food in the tank and i scooped some out but most have all ready settled and thismorning i woke up and my tank was covered in waste it needed to be cleaned imeadently so i removed me tetras i couldn't catch to zebra danios but i was very conserned for my ghost knife and angel fish because and loaches i just got them 3 days ago and im afraid they havent competely settled i removed all the plants except my pvc t pipe for my ghost and stirred the gravel up and siphened 50% of the water out and the temp was 80 and i had to put new water in so i put cold water in with aqua plus and waste disposal and now the temp is 70 thats a huge drop for 5 min i need help