shuks's 3 easy steps toward algy controll...
hay everyone. I've been in this plant game (and forum) for just over a year now. During this past year I've spent most my time battleing algy. I consider myslef a profeshional algy grower. I can grow every kind of algy you can think of. Recently, in the past month or so, I've finnaly got controll over my algy, and I'd thought I'd post my journy for other people going throught the same thing. Im by no means an expert because there are many people with WAY more experiance than me, but this is what worked for me..
#1 cause of algy: no1 and no2 spikes. If you dont know if you have ammonia or nitrite in your tank that should be the first thing you check!
#2 cause of algy: (this is the biggest factor contributing to my success) not enough oxygen in the tank! I know thoes of us who inject co2 want to keep surface aggitation to a minimum to prevent co2 loss. When I switched from my HOB filter to my xp2 canister filter I placed the spraybar about 4 inches under the water line to minimize surface aggitation. I had good circulation in the tank, but not enough oxygen was disloving in the water. My fish started to die (at night) and my plants looked like crap. After elemanating all other possibilities, I came to the conclution that they sufficated at night when the plants were breathing o2. I replaced my spray-bar so that it makes the maximum amount of surface aggitation that it possibley can. I noticed a drop in co2 levels, but I'm more than happy to crank the co2 up a little bit to make up for the diffrence. Almost imedeatly after I did this, my fish look 10 times more active and happy, and I had no more fish deaths since. A couple days later I noticed my plants looking REALLY healthy (like they did before I romoved my HOB filter) and I've had almost no algy what so ever.
#3 cause of algy: this is a common one that everyone already knows. Nutrient defficiency. If your running your tank high tech, then make sure your N, P, K, and iron levels are present. Also, probably the most over looked nutrients are magnesium and calcium. Dont assume you have plenty of both just because you tap water is hard. If possible, try and fined out the exact ratio of calcium to magnesium, then dose accordingly. I believe the most accepted ratio is about 3 parts calcuim for every part magnesium, but I dont think it really make s a big diffrence as long as there both present.
So, thats that... Hope someone can fined something usefull out of this thread. Just trying to give back to the community that has given me soo much. Good luck..
75 gallon, fillstar xp2 with inline reactor, 12 Lb pressurised co2, 4.2 WPG-corallife 3x96 watt PC-, fluorite/silica-sand substright.