I'd suggest while you wait for the meds start with some water changes and aquarium salt, idk your water parameters but don't do anything too drastic like a 90% change. Start off with daily 15-20% changes to get them acclimated slowly to having squeaky clean water.
Also do you use a gravel vacuum? That can help alot, I don't gravel vacuum mine because I use fine plant substrate and have lots of plants to absorb the decomposing material. But if you are using normal gravel without plants Definetly gravel vacuum.
Posted via Mobile Device