Guppy Has Gone Black?

[mobeyone]

I woke up today to find one of my guppies turning black!

Whats happened? I added 4 mollies yesterday as the tank has been settled for over two weeks now, gave the sharks back to the lps and this morning the red guppy is black? still active etc?

My other guppy is still ok?

 

[shang hi]

need more info realy
whats the size of the tank?

ph:
amonia:
nirtate:
nirtite:

hope it works out for you
shang hi

 

[WILDER]

Water stats please like been asked.
Size of tank in gallons or litres.
How many fish and which type.
Going black can be ammonia burns that are healing.

 

[mobeyone]

all are within paramaters.

Amm: 0
ph: 7.2
nitrite: 0

No other fish has been affected and only since I put 4 mollies into the tank.

Tank is 90l and I now have:

4xmollies
2x guppies
1x plec
3x neon terta
3x corby

tia

 

[mobeyone]

30% water change just carried out, stats as follows:

ph: 7.2
amm: 0
nitrITE: 0.25
nitrATE: 0

Nitrite has crept up again slightly.. I am now on weekly cycles so may step this upto 2 just to counter any increase.
Guppies tale has gone back to orange but still has some black...

 

[shang hi]

firstly you shouldn't double post, just edit the last post.
secondly the tank doesn't sound over stocked it sounds like the filter bacteria didnt have time to catch up with the rappid increasse of ammonia in the water. not only from fish waste, tropical fish always release it in their breathing ect, im not sure what the black is but i highly dbout its ammonia burns healing (not to say the wilder is wrong).
sorry i couldn't be much help
hope theres nothing wrong with poor guppy
shang hi

 

[WILDER]

Has the fish gone black in all parts or just sections.
Black patches can be many things, even bad water quality.

 

[mobeyone]

Just around the rear and fin.

Its wierd to be honest.. cleared up last night but now back again? and the silver scale colour is begining to return slowly....

 

[WILDER]

Just keep an eye on the fish.
Good luck.

 

[fatfishman]

I woke up today to find one of my guppies turning black!

Whats happened? I added 4 mollies yesterday as the tank has been settled for over two weeks now, gave the sharks back to the lps and this morning the red guppy is black? still active etc?

My other guppy is still ok?

One of my male guppies dorsal fin and back turned partially black once, i was quite worried but it had cleared up by the next day, its behaviour didnt change and it was eating.

I dont know what it was but its back to normal now and havnt had any problems with it since.