Wherever the sun can access that has a wet and humid condition, algae development is likely to happen. This ensures that the aquariums are perfect destinations for algae to live. While tiny algae would not damage your pets, it can be detrimental to their wellbeing by overgrowing. You can use bleach or chlorine to combat algae growth. Bleach kills and stops the growth of them. Mix them with a ratio of ¼ teaspoon for each water gallon. Do not forget to bring all the living species in your tank including animals and plants to a safe place before doing the treatment.