Angelfish swimming sideway

[angellover]

Is it normal that angelfish swim sideway? my three angelfish like to do that when chace/attack other fish. I sometimes see them scraping their face on the plants (never done it one rocks though). Is it the symptomp of Ich? However I don't see anything on their face or mouth. By the way, the water parameters are 0 Ammonia, 0 Nitrites, 10 Nitrate.

[Northernguy]

I don't see why not! My oscars swim sideways backwards and even upside down!lol They will also swim in defense against anothers attack.

[rich311k]

Sounds normal, that is how mine attack when they are irritated.

[Twe3k]

mine started to do the same thing.. followed by ick.. im not sure if its related to the ick outbreak.. but none of the angel has ick, just my GBR... but the whole tank is treated now.. i would keep an eye on them and if u see any, treat it. Go buy the treatment now just incase, so u have it.