I actually had a diatom bloom earlier as well, then they went away.
Then I actually got cyano
, I think due to overfeeding (it's hard to resist not feeding the puffer every day) and the puffer got ich.
I think its probably more of a second cycle, maybe due to the dieoff that would have happened from me killing the light for that long?
I had was a completely different colour so I was pretty sure it wasn't that but there's a lot more diatom this time.
The reason I got into the hobby is to have really cool fish, can't really deny the personalities on puffers/triggers.
I can see myself setting up a smallerish reef in the future, but my big tank is for big fish with big personalities