green water

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jason longboard

Piranha
MFK Member
Apr 12, 2007
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california
alright,my tub thing thats about 200 gal or so has more than half plants,6 1 to 2 inch comets and some misquito fish,and a laguna pump that makes like a little fountain on top of the water for movement and oxygen.THe water is pretty dark now,its been set up for a few weeks,I read that goldfish do good in the green water but honestly I can hardly see them now.I know this is a common issue,but I would like to do something about it,also wondering,is it really ok for the goldfish,I dont want them to die because of it.
 
you could add a pond uv sterilizer to help eliminate the algae issue most ppl I work with and customer's had great success with a UV sterilizer. Hope this help's you.

mr.reef24
 
Green water is okay with goldfish. Your comets will benefit from it a lot as green water enhances their natural coloration. The only thing you have to worry about is when the green algae starts to die which is called euthropication. This results in ammonia rise due to the dead algae and could seriously deplete the oxygen but your pump will solve this issue. Add Egeria densa and hornworts in your pond to keep the green algae in check. Both plants in my experience with ponds, were able to outcompete the green floating algae thus the ponds are crystal clear.
 
Lupin;3209609; said:
Green water is okay with goldfish. Your comets will benefit from it a lot as green water enhances their natural coloration. The only thing you have to worry about is when the green algae starts to die which is called euthropication. This results in ammonia rise due to the dead algae and could seriously deplete the oxygen but your pump will solve this issue. Add Egeria densa and hornworts in your pond to keep the green algae in check. Both plants in my experience with ponds, were able to outcompete the green floating algae thus the ponds are crystal clear.

what's the growth rate on those plants? I added a couple water lillies to mine and they seem to be taking forever.
 
E. densa and hornwort grow very rapidly. Water hyacinth and water lettuce are other fast-growing nutrient sponges; they have the added advantage of shading the water.
 
I cannot even sell the two plants I mentioned. They're no longer really of value and are given away. I just feed the cuttings to snails and even goldfish themselves and throw the rest to my garden for compost. The ones in the pond won't be able to damage the plants completely as the plants can quickly sustain themselves.
 
Ive got the water hya and one lily potted,a bunch of parrot feather,and a group of water lettuce.I didnt want to go to the uv sterilizer just because im tryin to keep this simple however thanks for that idea,will the green run its course or is it just going to get worse?alsowhat about chemicals form the store,anything that wont hurt the plants or fish?thank you guys for the info,Ive done aquariums all my life but never this outdoor stuff and this forum seemed fairly dead until now,I knew mfk would finaly come through for me,though it is just a dorky 200 gal tub,I will get pics soon.
 
I get what you mean :S
You don't mind that they benifit from green water, but you kind want to see them :/
 
Daphnia are death on green water- if you can get a big enough starter population that your fish don't eliminate them right away. Perhaps you could make a simple 'refugium' for the daphnia with one of those mesh planters.
 
is it in full sunlight?
 
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