[Peppered cory temps]

Thanks yall, love the pattern and behavior of these little guys so that's a relief. 

[Peppered cory temps]

I have a platy tank that I added some peppered corys in, but I didnt know they like it cooler than most other cories. I know platys have no issue with cool water, so I was going to run the tank at 74-75, but Ive seen others say that peppered shouldnt go over 72. Will 75 harm their lifespan potential in the long run? 

[Should I be concerned with this chip?]

I was putting on a black background when I noticed this spot on the top corner of my tank. I ran a finger over on the outside and inside of the tank and I cant feel anything, the silicone feels intact and the glass on the outside doesn't feel chipped. I literally set this tank up tonight 😕 

[platys with betta, worried about water hardness]

Thanks, when I referred to hardness I meant gH. My kH is lower, around 3, but my PH seems stable so I`m not too worried. 

[platys with betta, worried about water hardness]

So I recently finished cycling Bruce the bettas new tank, I did a fish in cycle since it was an emergency move due to a poor filter that caused his old tank to crash. Anyways I added three platys today, and everyone is getting along perfect, however my memory lapsed and I forgot they prefer harder waters then bettas. Bruces water was super soft and acidic and I was worried that it was stalling they cycle so with aragonite and decorative stone I managed to get his water up to about 7.0-7.6 ph and a GH of six degrees, but im worried about it being to low for the platys and dont want to make it to high for Bruce. I ordered some seache, equilibrium and might add extra crushed coral, but wanted to see if anyone had any advice on a good number to aim for. Thanks.