Today we made brackish water which is a less salty salt water and we put old gravel to have bacteria. Then we put a rock in the gravel so we can put growing algae. After we started making the water so first we got the water we needed. After getting the water we mixed it to the salt and used the hydrometer to make sure we have the right amount of salt. Then we put the water in the habitat. lastly we put the habitat in the garden.
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