Treat ornamental fish properly with PREIS products

Disease  Medication  Possible combinations  Duration of treatment  Type of water  Particularities 
Parasites of the
gills and intestines,
obstipation 
PREIS-Coly  Can be combined
with any other PREIS
product 
Water: 2 – 4 days
Feed: 3 days
Repeat after 1 week  
Freshwater
Saltwater 
Important for new imports
Freshwater and saltwater,
Malawi and Discus 
Bacterial diseases,
fin rot,
transport lesions 
PREIS-Prebac  Can be combined with
Neosal powder for viviparous
species in freshwater  
5 – 8 days   Freshwater
Saltwater 
Harmless to water
plants and invertebrates 
Oodinium,
Cryptocaryon,
Ichthyophthirius 
PREIS-Cryptan  PREIS-Prebac  minimum 8 days  Freshwater
Saltwater 
Do not use for invertebrates
and catfish, contains copper! 
Oodinium,
Ichthyophthirius
Prophylactic treatment
of all new imports 
Neosal liquid
Neosal liquid  
Combine with PREIS-Coly
for new imports or with
PREIS-Prebac for
simultaneous bacterial
infections 
5 – 8 days
3 days  
Saltwater
Saltwater 
Treatment harmless to
invertebrates 
Fin rot, Costia
In viviparous species 
Neosal powder
Neosal powder  
PREIS-Prebac
PREIS-Coly Concentrate 
3 days
5 days 
Freshwater  Raise temperature to 28 oC
and initiale immediate
treatment for new imports /
viviparous species 
Black and red algae
(silicic algae) in
saltwater aquariums 
PREIS-Algan    5 – 8 days   Saltwater  Harmless to invertebrates
and higher-order algae