4.5 weeks....

[skynoch]

I went back through your other post and know you were told to remove some substrate due to it being to thick. I know it's hard to pick out what's good and bad advice but you seem to be doing allright. It's just time to go back to more basics. And yes you can see spots that have rubbed on rays when there is barebottom until the ray get's use to it.

 

[snake_charmer]

why do you keep altering your tank? constant change only adds stress to your fish, taking out the substrate not only stress out the ray but you're also removing precious bacteria that lives on those substrate..

....Because I was informed that having too deep of substrate can lead to an increase in amonia and nitrates due to it being trapped in pockets(made sense to me). So I removed half of the substrate and left an open patch of bare bottom for the ray. Noticed that she seemed to prefer the glass instead of the pfs so I removed the majority of the rest a week later. I didn't remove it all at the same time, it was done in portions.

like I said, STOP what you're doing, because it's NOT working.
please test your water.

I'll test the water tonight and add some more food.

 

[snake_charmer]

Test came up good with nitrate, nitrite, and ammonia. I'm assuming the damage to the underbody must be from the change in substrate since the previous owner had a smooth pond liner: