Scalars must be kept in water mediotenera, survive well in water mediodura.i standard values sonogH 9kH 7 3 6 5PH seventh secondary values sonoNH3/NH4 0NO2 0NO3 little as possible! (Plants help in everything) must have a minimum temperature of 26 ° C (you understand) 26un bit higher than the average 24 25 usually feel that because the temperature below that this weakens (the specimens healthy young, or old ones get sick a little weaker) a little advice from bst67 for you remove the tub Plecostomus, ancystrus and the like during the laying and hatching, because otherwise you will disappear all the eggs. . ancy and the Pleco especially while eating the eggs keep well bear attacks and bites of their parents.