black clown gobys dieing

[prodogg02]

i have had a pair of black clown golbys for 3 weeks last night i noticed it lookd like there scales are falling off to day at about 7 when i got home one was stuck to the filter still alive but weeek he is white like he has no scales the other one is the same way but not as bad yet idk whats wrong with them any help would be appreciated the water is fine the alk is high like 150 with a hagan test kit dont think this would cause it though i have a bicolor bleny in there to and hes fine

[MitchM]

Are the scales protruding out first, then falling off or are the scales just there one day and gone the next?

[prodogg02]

they are protruding out then falln off

[MitchM]

It sounds like it could be a bacterial infection. How big is your tank?
You could medicate them in the display tank if it's not too big.

[prodogg02]

they are in a 6 gallon nano with a bicolor bleny who is fine would exodin work i have some of that but scared to use it

[MitchM]

I think exodin is for parasites.
You need an antibiotic like Kanamycin

[prodogg02]

ok thanks ill try it they make it through tonight