we're new owners of a betta. the first one passed last weekend (after surviving a couple of weeks),and we got a new one. the second one has done better for a couple days, but now the same symptoms are happening.
the last fish got weird spots underneath his head, stopped eating, and fins clamped up. we treated him for fungus, because it didn't look like any picture of ich or anything else i could find online. we did the full fungal treatment, hoped for the best, then he just died last weekend :(
i've answered the questions below, but we have a 2.5g tank, heater, a couple live plants, a cave, different kinds of food...50% water change weekly. i think we're doing what we're "supposed" to, but as these spots have appeared again, i think it's time to ask for help!
symptoms are just beginning for this fish but they're the same: a lighter patch all over the bottom of his head (not white, but lighter...he's a dark blue-headed betta with a teal-colored body that still looks fine), fins are beginning to clamp together a bit, and he's stopped eating. he's still swimming around, but the light-colored spot just started last night.
What size is your tank? 2.5g
What temperature is your tank? 76-80F
Does your tank have a filter? no
Does your tank have an air stone or other type of aeration? yes
Is your tank heated? yes
What tank mates does your betta fish live with? none
What type of food do you feed your betta fish? pellets, bloodworms
How often do you feed your betta fish? 3ish pellets a day, bloodworms for a treat
How often do you perform a water change? weekly
What percentage of the water do you change when you perform a water change? 50%
What type of additives do you add to the water when you perform a water change? 1 tsp aquarium salt per gallon, API stress coat to condition water
Have you tested your water? yes at a petstore. we were told it is fine.
If so, what are the following parameters?
Symptoms and Treatment
How has your betta fish's appearance changed? appearance of lighter-colored patches on the underside of his head
How has your betta fish's behavior changed? still swimming around, but sometimes jerking his head a bit. this happened last time too.
When did you start noticing the symptoms? yesterday and today
Have you started treating your fish? If so, how? Not yet, but i was thinking i'd try more aquarium salt. i was reading some postings and people suggested adding more salt to the water. i don't think we can up the temp any higher.
Does your fish have any history of being ill? not yet, but the last one got the same stuff and died.
How old is your fish (approximately)? we've only had him a week!