HomeBabysittingwhy are a few of my fish slowly dying?
Posted in Babysitting on 25th July 2011

why are a few of my fish slowly dying?
I have a 30 gallon hex tank and started out with 4 black mollies, 3 black skirt tetras and 4 swordtails about 4 months ago. Every couple weeks since then one by one all of the swordtails and 1 of the blk molly would hang out at the bottom of the tank by itself and only come up to eat (when other fish went near them they would go hide someplace else). They all looked perfectly healthy but all unfortunately wound up dying. The other fish have flourished the whole time and one of my black mollies gave birth, 8 survived. Once the surviving babies got big enough I put them back in the tank and added 3 silver mollies about 4 weeks ago. So I currently have 11 black, 3 silver mollies and the 3 tetras but as of yesterday 1 of the silver mollies is “sitting” on the bottom and showing the same symptoms the other fish did before passing away. I do regular weekly water changes and the water tests out perfect (I even brought some to the store to double check). Any idea what could be the cause?

Best answer(s):

Answer by Joel D
Baby fish are a good indicator. If that many survived, then I would say it’s not a problem with your water. One thing I can think of is that you may have over crowded your tank. A good rule of thumb is 4 square inches of surface area for every inch of fish. While the number of fish can be increased if you take good care of your tank, keep in mind that a 30 gal. hex doesn’t have as much surface area as a 30 gal. rectangular. Try puting in a bubble stone and as your local pet store what else may be wrong.

Answer by dogluver
It could be that your tank is not established enough yet. I had the same problem for a couple months. Best thing to do is to buy a stabilizing mixture of some sort (I forgot what they are called but I know they exist) get a couple more live plants in, change the water less often and let a bit of algae grow. I have found that the fish are often healthier the less you mess with their water. Also you could try some aquarium conditioning salt for freshwater fish . There is really no quick solution, you have to let the tank become stabilized before your fish will be happy.

Related Post for Week of the Younger Little one

KinderCare Training acquires Rainbow Youngster Care Heart, increasing to greater than 1,500 studying facilities, serving 185,000 kids throughout the USA
Rainbow Baby Care Middle Selects HiMama Baby Care Software program for Mother or father Engagement
Rainbow Little one Care Heart Creates Early Childhood Advisory Committee in Collaboration with Trade Specialists
Creating Wholesome Habits: Fostering Kids’s Relationship with Motion
Week of the Younger Little one
tags: , ,