Aquariums: Why is my betta lying on the bottom of his Tank? He has been like this for the past couple of days, I have been doing frequent water changes and he hasn’t improved. I tested for ammonia, there was none. He didn’t eat his food today. He swims around occasionally but mostly stays like the pics

There is a lot of algae in the tank but we’re working on it

can always pay for fish vet to come and see your fish. They’ll give you an exact answer with whats wrong . Had 1 come and they told me slight fungal not parasites on my fish. Swabbed gills and checked under microscope. Tested water, told me what to do to raise PH . Tested 2 fish. If you care that much for your fish. Last resort if nothing works. I just wouldnt wanna sit idly by and watch animals die.