Raising basin for african dwarf frogs (Hymenochirus sp.)
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As raising basins for Hymenochirus sp. you can take a flat plastic bowl for example which you can place on the aquarium hood (because this place is mostly warm) or other tempered places. Please check which place on the cover you take (because it could be too warm). Maybe you can put the bowl (height of about 5 cm, water level approx.. 2-4 cm) on small blocks, so that the water is not warmed up too much. The room temperature should be so high that the water does not become colder than 22°C also at night. Or you use a heating mat (under the bowl) like it is commonly used in a terrarium to temper the water. You should control the Temperature also in that case (ideal is approx. 25°C).

The other possibility consists in taking a small aquarium with a staff heater and a diaphragm pump. Very small air bubbles are redundant and unwanted in the initial phase, since the fine bubbles harms the young larvae. The diaphragm pump is necessary, since with a high water level the sufficient oxygen does not arrive the water over the surface not (fast) enough.

The water should be renewed daily. Taken water shouldn't be used directly from the line. Ideal is, if you wait for approx.. 8 hours (so that chlorine and other surplus gas can escape) and/or you takes water out of the aquarium.