Hi all, I have a question about my planted tank, but first let me introduce my background. i started a "fish" tank 5 years ago since my lovely wife demanded a gold fish of her own. For the next 2 1/2 years i grew a lot of algae and the goldfishes did grow fatter, the moved from their 5 Gal ( woefully inadequate) tank to their new home - a 20Gal long, meanwhile I did put a few plants here and there picked up from the LFH (petco) and they grew lovely hues of various kinds of algae. Then a while ago i came across - Planted aquariums - and i was quite smitten, dreamt many nights to have my goldfishes live in the midst of a natural setting. Then came Barrreport and thus I got my first experience at growing plants!!
Heres my first attempt:
Airgas dual regulator - sumo post kit with Ideal valve
Koralia for surface movement
Hydor 200W inline heater 78 deg
Danner NW 3 inline with CO2
Light - Catalina 48Watt ( only has 1 tube on for 10 hrs and 2nd on for 5 hours midday)
EI 2 - 4 times weekly
WC 2 - 4 times a month ( sadly a BUSY life )
12 neon tetras
4 SAE - will find a bigger home soon.
I am fairly happy with the setup ( wifee recently gave permission for a new 100Gal tank as well )
The problem is an oily skin at the surface. Drop check is nice and limy green , flow is great ~ 500 gal/hr total for a 20gal tank, and there is the tiniest amount of visible algae anywhere on new leaves (many plants came from a algae loaded fish tank)
The problem is that for the last few days I am noticing a thin oily covering the surface that needs to be manually skimmed and keeps coming back.
I at the moment have no time of means of checking CO2 or nutrient levels ( 14 hour work days! )
I dont know what else to provide as info!
Thanks beforehand for your replies and insight.