Is this platy fin nipped or fin rot?

[Fishyfreeonz]

The picture in post 2, the red fish has a creamy white film over its head and body. This is excess mucous produced by the fish to help protect it from something in the water that is irritating it.

Is the Thrive all in one fertiliser for aquariums or gardens

That is just a really bad picture. That coloration doesn't exist in real life. It's just glare or something.
Thrive is an aquarium fertilizer

 

[emeraldking]

That is just a really bad picture. That coloration doesn't exist in real life. It's just glare or something.
Thrive is an aquarium fertilizer

In photo#2 the platy is just blurred in my opinion which makes one think that it's mucous for I can not see the same thing in photo#1.

 

[Fishyfreeonz]

I tried to get some better pictures last night after I got the light. The first picture has bubbles in front of the fish that look like there is something on the fish but there isn't and the glare and water spots on the glass give the whole picture a whitish look. Hopefully these pictures are more useful.
They all seem to be eating well and swimming around happily. I see no signs of stress.
I did a 30% water change last night and before the water change all the parameters were the same as in my original post.

 

[Fishyfreeonz]

And just for fun here is an overall picture of the tank with the new light.

 

[emeraldking]

Well, can't see any mucous on the fish itself.

 

[Gamegurl564]

And just for fun here is an overall picture of the tank with the new light.
View attachment 328851

Haha, was looking at pics and recognized your tank Fishy. Yee Olde Mystery Mansion

 

[Fishyfreeonz]

Haha, was looking at pics and recognized your tank Fishy. Yee Olde Mystery Mansion

That reminds me I should give an update. The picture quality terrible but the fin seems to be healing.

 

[Gamegurl564]

View attachment 329452
That reminds me I should give an update. The picture quality terrible but the fin seems to be healing.

Looks like the one to the right is heavily preggers. Are they nipping at each other? I noticed some damage on moms fins

 

[Fishyfreeonz]

Looks like the one to the right is heavily preggers. Are they nipping at each other? I noticed some damage on moms fins

That is a white streak in the tail. They chase each other around a bit but I think it's mostly mating.
I am looking forward to seeing what color her babies are.