Hi everyone, new member here! So many great setups and beautiful tanks from the members of this forum!
Ok, here's my setup. I've got a band new 30g tank which I setup about 2 1/2 weeks ago. Here's the list of equipement:
-30g Hagen tank (31" L x 13.5" W)
-2 x fluval 205 canister filters
-Aquatic life 4 x 24w 6500k T5 HO light fixture sitting about 3" from the top of the tank. So about 96W total or 3.2 wpg
-Pressurized CO2 infusion (10lbs tank, regulator, needle valve, selenoid, bubble counter, tubing and ceramic diffuser)
-Aquaclear 50 powerhead set on minimum flow
-Corallife TT 3x UV sterilizer inline with output of one of the fluval 205 filters
-Substrate: about 3" of black flourite
->Illumination cycle: about 11 hrs/day
->Water parameters: 0 amonia, 0 nitrite, very low nitrate, PH around 7.6 when not infusing CO2 drops to around 6.8 when infusing CO2.
->CO2 infusion rate: about 2.5 bbs. Diffused by ceramic disc which is sitting under my powerhead which absorbs it, chops up the bubbles and disperses them into the tank
->Ferts: Flourish 2x week, Flourish Iron 2x week. Dosage as per bottle instructions
I planted this tank moderately when I first set it up and everything was fine for the first 2 weeks. Plants doing fine, clear water, no issues whatsoever. The tank has a mix of low, med and high light plants in it.
However, about 2 days ago, I started noticing what I would describe as greenish 'hair algea' growing on some of my plants. Also, some of the plant leaves were beginning to show brownish algea spots. Mainly on the Anubias. Also a bit of algea spots are beginning to appear on the glass which I'm dealing with using a magnet glass cleaner.
Now, I'm no expert but this isn't my first tank and I've never really had any major problems with algea before, but with this new tank setup, it's starting to creep in quite early. Not even 3 weeks in and already algea making its appearance in various places. I don't even want to think what it will look like in a month or two...
What could be the problem? Too much or too little lighing? Too much or too little CO2? Too much or too little ferts? Illumination cycle issues? Anything else?
Thanks a lot folks for helping out the new guy