I do not posess a testing kit but in my opinion I do not think it is ammonia poisoning as the water was put in like 2 hours ago unless ammonia built up too quickly(does ammonia built up this quickly[stock 3 yamato shrimp 3 cherry barb couple of plants and Marimo moss ball]. It’s under stocked so I didn’t think that it was ammonia poisoning.
however I’m currently not at home (need to go settle something) so I cannot do a water change now. I hope the fish survive I’m doing a water change immediately when I get back. Do I do 10% or 25% or bigger? And I see no white specks. P.S don’t plants absorb ammonia nitrates and nitrites? I’m very confused right now XO. I left like 10 min ago and the fish was still alive just a bit inactive and fins still clamped. Anyway thanks! I’ll post again if the situation changes
I suggest you, and everyone who owns fish, get a good liquid test kit ASAP. In a situation like this you will have NO clue what is going on without it, even then it can be a guessing game but best to have those tools at your disposal to increase your chances. If the fish were jumping after adding them that is a sign that something is seriously wrong, so wrong they didn't even want to be in the water.
So you filled this tank up from your tap I assume and then just a couple hours later moved the fish and everything over? If so, then it's probably pH shock or some other shock from being moved from one environment that they were used to a brand new environment. Did you use the old water from the 1st tank in the new one? If not, this was a 100% water change and without a test kit we don't know what the problem is so it's difficult or impossible to address.
This is a situation where I don't think a water change will help either cause it's already brand new water, adding more brand new water won't help. Unless there is something in the new tank making the water bad but again without testing we just don't know. I am sorry I can't help more. Only thing I can suggest is aeration to give them more oxygen and maybe gas out that fresh water bring it closer to the aged water they are used to, if that is even the case. Hope they make it!
BTW Ammonia does not build up that quickly with such a low stock level. Plants do absorb nitrogen but how fast depends on a lot of factors and if the plants are healthy or not. Your java fern and marimo ball are slow growers and hence do not suck up a lot of nitrogen quickly.