Please help me

[Kyle0226]

I have a 55 gallon 4 angelfish two tetras a giant danios a bala shark and a iridescent shark my tank has ick and I have lost four fish due to it I bought ick guard and used it my fish looked better now it's back again on my angel what should I do ph levels are fine I've been doing 20% water changes like every 3 days cleaning my gravel but my tank water stinks please help what do I do how do I get rid of this ick and bad smell

 

[fishwonder]

Make sure it is Ick as it could be Epistylis. Information of Ick is here. Information for Epistylis is here.

 

[Delapool]

I have a 55 gallon 4 angelfish two tetras a giant danios a bala shark and a iridescent shark my tank has ick and I have lost four fish due to it I bought ick guard and used it my fish looked better now it's back again on my angel what should I do ph levels are fine I've been doing 20% water changes like every 3 days cleaning my gravel but my tank water stinks please help what do I do how do I get rid of this ick and bad smell

Just checking you are not running any carbon in filter?

The bad smell I’ve never really struck using the ‘dye’ treatments. Have you tested ammonia? Dead fish somewhere?