my wierd mbu puffer

[johnny1234]

ok so i have a banded knife fish ,bgk and a mbu puffer in a 180g.
so i had my light on.i have a new T5 light 4 t4HO i only have 2 on during the day . so i was running 12pm to 8pm light time but it seems every time my light on my mbu likes to lay on the bottom and go to sleep. then light out he is ripping around like crazy. then i tried from 5am to 1 pm light time same thing lays on the bottom . but now ive been thinking my banded is very active at night ripping around like crazy. i wonder if this stresses out the mbu at night then when lights turn on banded hides then my mbu gets a break and goes to sleep. im running 2 T5 HO 10K during the day. i don't know what to say maybe my mbu is just being a PUFFER. i was thinking of giving my mbu all the 180 gallon and take out the knife fish for a week and see what happens . any ways what do you guys think . i would really like all info i can get

my mbu is 6 inches too

 

[Dart7383]

I don't have any experience with a mbu, but my gsp does the same thing. He cruises the tank all night, and literally curls up in a ball and sleeps most of the day. If any of his tankmates bother him, he swims to a new spot and goes back to sleep. When I feed he gets up for a few hours, but definitely most active at night.

 

[itty_bitty]

thats strange, the second our lights go off (we have a f8 and a gsp) our F8 drops to the bottom and just cruises, if the lights on shes mid to top but as soon as lights out come she practically hits her face on the bottom.......