diff --git a/src/args.jl b/src/args.jl
index 75577482..a6f0f41d 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -786,7 +786,6 @@ function processFillArg(plotattributes::KW, arg)
         plotattributes[:fillrange] = arg
 
     elseif !handleColors!(plotattributes, arg, :fillcolor)
-
         plotattributes[:fillrange] = arg
     end
     # plotattributes[:fillrange] = fr
diff --git a/src/backends/pgfplotsx.jl b/src/backends/pgfplotsx.jl
index 99b52c8e..4c060436 100644
--- a/src/backends/pgfplotsx.jl
+++ b/src/backends/pgfplotsx.jl
@@ -191,6 +191,7 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                 _pgfplotsx_series_ids[Symbol("$series_index")] = series_id
                 opt = series.plotattributes
                 st = series[:seriestype]
+                sf = series[:fillrange]
                 series_opt = PGFPlotsX.Options(
                     "color" => single_color(opt[:linecolor]),
                     "name path" => string(series_id)
@@ -200,7 +201,7 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                 else
                     series_func = PGFPlotsX.Plot
                 end
-                if series[:fillrange] !== nothing && !isfilledcontour(series) && series[:ribbon] === nothing
+                if sf !== nothing && !isfilledcontour(series) && series[:ribbon] === nothing
                     push!(series_opt, "area legend" => nothing)
                 end
                 if st == :heatmap
@@ -243,9 +244,9 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                         segment_opt = merge( segment_opt, pgfx_fillstyle(opt, i) )
                     end
                     # add fillrange
-                    if series[:fillrange] !== nothing && !isfilledcontour(series) && series[:ribbon] === nothing
-                        if series[:fillrange] == 0
-                            pgfx_fillrange_series!( axis, series, series_func, i, _cycle(series[:fillrange], rng), rng)
+                    if sf !== nothing && !isfilledcontour(series) && series[:ribbon] === nothing
+                        if sf isa Number
+                            pgfx_fillrange_series!( axis, series, series_func, i, _cycle(sf, rng), rng)
                         end
                         if i == 1 && opt[:label] != "" && sp[:legend] != :none && should_add_to_legend(series)
                             pgfx_filllegend!(series_opt, opt)
@@ -260,10 +261,14 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                     )
                     push!(axis, segment_plot)
                     # fill between functions
-                    if series[:fillrange] !== nothing && series[:fillrange] != 0
+                    @show sf
+                    @show series[:fillcolor]
+                    if sf isa Tuple
+                        sf1, sf2 = sf
+                        @assert sf1 == series_index
                         push!(axis, series_func(
                             merge(pgfx_fillstyle(opt, series_index), PGFPlotsX.Options("forget plot" => nothing)),
-                            "fill between [of=$series_id and $(_pgfplotsx_series_ids[Symbol(string(series[:fillrange]))])]"
+                            "fill between [of=$series_id and $(_pgfplotsx_series_ids[Symbol(string(sf2))])]"
                         ))
                     end
                     # add ribbons?
diff --git a/src/series.jl b/src/series.jl
index be5fc439..88e89b26 100644
--- a/src/series.jl
+++ b/src/series.jl
@@ -13,6 +13,7 @@ const DataPoint = Union{MaybeNumber, MaybeString}
 
 prepareSeriesData(x) = error("Cannot convert $(typeof(x)) to series data for plotting")
 prepareSeriesData(::Nothing) = nothing
+prepareSeriesData(t::Tuple{T, T}) where {T<:Number} = t
 prepareSeriesData(f::Function) = f
 prepareSeriesData(a::AbstractArray{<:MaybeNumber}) = replace!(
                                     x -> ismissing(x) || isinf(x) ? NaN : x,