Green cloudy water
I've been fighting a green cloudy aquarium for almost two weeks, it doesn't seem to want to clear. I am assuming it's algae bloom. Don't see a whole lot on the walls or ornaments, but I have a good pleco, so I may not see it. I have several varieties of live plants, not sure of species. 28 Gal, 0 ammonia, o nitrites, nitrates kept at 15 or less. 78 degrees, T5 lighting with 1 24W 10000K and 1 24W freshwater pink now running about 5 hrs/day, had been closer to 12. I have also recently added CO2 injection (DIY) to try to encourage plant growth. Any ideas???
Is your tank in direct sunlight? If so moving the tank or placing some kind of barriar would help. If not the Co2 may be the cause of your problems.. You could try decreasing the amount of yeast you put in the bottle to decrease the Co2 output.
Green water is a mysterious thing, I had it bad for almost a month and a half, then one day it was just gone... well mostly, the day after it was all gone lol
Are you buying water from fish_4_all?
You might try getting a bulb in the 6700K range. 10,000K is a ton of energy.
Haha herefishy :P
I have fought green water in one tank for 6 months now. Simply won't go away and stay away. The funny thing is there is a tank right beside it under the same light that is crystal clear.
Best advice is to try and make sure your plants have enough nutrients. If they grow fast enough with the right balance then they should outcompete the algae for food.
Direct sunlight is a killer but, with the days being longer, even ambient sunlight could be an issue. More ambient light can feed the algae combined with the current light.
8 hours is fine for your lighting but I would also have to second herefishy that youmight want one closer to 6500K. As for CO2, give it time and it just may do the trick.
Something else you could try is Flourish Excel. It is a very good carbon source for plants and, although they will never claim it, it is a very effective algaecide. Just don't overdose it or you may have nothing but plants in your tank. And very important, Valisnaria, Hornwort and Elodea do not like it! They may die off completely if you use it but will sometimes come back in time.
CO2 is great for preventing algae, but you also need to provide the plants with plenty of nutrients, or the co2 won't help much. Are you adding ferts right now? I also use flourish and like it the most of all the ones I've tried. You'll also want to add root tabs to any rooted plants you have, as they draw most of their nutrients from the substrate, not the water.
It's also possible if you're currently using fertilizer that it has phosphates and other things in it that are encouraging the algae problem. I had a huge green water problem when I was using the API liquid fertilizer, and since I've switched it hasn't been a problem.
Thanks for the great advice all! I'm not currently using any ferts, does fish poo count? I have about 15 fish: 3 angels, a pleco, 2 boliv. rams and the rest minnow/tetra like stuff....don't really want to add chemicals if I don't have to, just don't know if plants can utilize fish poo like land plants can....
Fish poo does provide a lot of it but it lacks micro nutrients. Iron, magnesium, potassium and such. All needed for optimul plant growth.
I was reading another post and got to thinking, what about introducing daphnia? Green water is what they eat right? then they become a snack for the fish. If sustainable, that would add to the symbiosis and thats part of the goal for keeping aquarium IMO.
You could certainly give that a shot, but I wouldn't really count on your daphnia living long enough to make a big difference. I definitely wouldn't count on them living long enough to reproduce. Those little suckers are just way too tasty for your fish to pass up.
I tried the daphnia.... didn't work to well. I put about 100-200 in my 10G and the fish had them gone before the water gave at all.
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