Sorry one more - does this have any affect on the fish?
391519
I would actually recommend getting a bubble counter on top and then that way you wont put too much carbon dioxide, but no it shouldn't as long as you have more plants with enough lighting you will be fine
391520
Yes it can. Adding CO2 to the tank will tend to drop the pH. How much depends on the hardness of the water and the amount of CO2 added. Just be sure to monitor the pH and be sure it stays within the safe range for your fish. Some fish will prove more sensitive to this than others and many will tolerate a fairly wide pH range anyway. The other severe problem would be adding so much CO2 that the oxygen level drops to an unsafe level. Unlikely with this system. Also, an easy problem to spot as some fish will gasp at the surface while others become lethargic on the bottom and would appear to be "gasping." I doubt that would happen with this product. Yes it can. Adding CO2 to the tank will tend to drop the pH. How much depends on the hardness of the water and the amount of CO2 added. Just be sure to monitor the pH and be sure it stays within the safe range for your fish. Some fish will prove more sensitive to this than others and many will tolerate a fairly wide pH range anyway. The other severe problem would be adding so much CO2 that the oxygen level drops to an unsafe level. Unlikely with this system. Also, an easy problem to spot as some fish will gasp at the surface while others become lethargic on the bottom and would appear to be... » Read More Yes it can. Adding CO2 to the tank will tend to drop the pH. How much depends on the hardness of the water and the amount of CO2 added. Just be sure to monitor the pH and be sure it stays within the safe range for your fish. Some fish will prove more sensitive to this than others and many will tolerate a fairly wide pH range anyway. The other severe problem would be adding so much CO2 that the oxygen level drops to an unsafe level. Unlikely with this system. Also, an easy problem to spot as some fish will gasp at the surface while others become lethargic on the bottom and would appear to be "gasping." I doubt that would happen with this product. « Show Less
391521
No it does not as long as you don't use it too long or too much. So just turn it off at night but if you notice your fish are "slower" than usual then just don't use for about a day
905394
It depends on the fish. If you have guppies or smaller live bearers, then yes. Goldfish/koi is a nogo, though.
644641
Well it overheated my 5.5 gallon and killed my fish so it would probably do the same to a 3 gallon. Please do not buy...
1491907
It is my understanding that the barley bale is completely harmless to fish. It just naturally absorbs the algae. We used it with mixed results. I think we needed to get 2 of them since 1 didn't seem sufficient. People with ponds swear by barley.
658597
The PH does fluctuate, but I mever losses a fish while I was using this product.
2245598
It does not harm the fish at all if the directions are followed.I mix the aquatic herbicide in a sprayer then spray the weeds. I would definitely recommend it for killling above water weeds
2195694
I would not recommend using this in the context you are referring for fear it could affect your fish and plants.
1617909
No i haven't had any issue with my fish getting caught in the slits. The only way I know that they get caught is when they are sick and weak and they can't pull away from the power head.
2159644
the package said it will not harm fish or plant life, and it also kills larvae and eggs of mosquito , I found it to be very positive on my property and didn't kill anything but what it was intended to do ,within two wks about a quarter of the mosquitoes were seen buzzing around my head > If you have any standing water around on your property use poison or get ride of water standing
518191
NO.. I Feed this to my Saltwater Fish and any unnatural ingredients can pollute the water.
1518938
It doesn't affect the fish, but it makes their natural colors look more dull.
961166
It's actually a bit small even for one betta. I'd advise against adding any more fish.
1649982
Ours certainly didn't smell like fish when it arrived. No problems with it at all.
2263030
I have no idea. I washed it thoroughly and placed it in the tank. My fish have experienced no ill effects.
2107176
I would not do that. Not sure how this stuff affects ph etc... Use aquarium specific materials.
2050326
I can't help you but my 3 fish from 2 different companies died within swimming about a total of 2 hrs. each. NO GOOD.
462595
if you have a filter like a canister filter that is where the good bacteria lives it only gets rid of algae and suspended water based bacteria if that makes any sense it will not harm your fish or plants it will take out medicine so unplug it if you are going to ever have to use medicine I got mine for a algae problem and it cleared it up in about 5 days hope this helped