What a bummer ahy George.
When i set my first nano, man it was an algea farm i tell you!! BUT like you we learn from it, and from those first MASSIVE mistakes came along SHAKKIE so we have all been there.
One thing i did with my SHAKKIE is on the days that i didnt dose Nutrafin PlantGrow i dose the same amount (10 drops) of Nutrafin Cycle. I did this for about three months. The reasoning was, if i added live nutrafying/nitrifying (??spelling??) bacteria, then the bacteria will be comnsuming the well nown ammonia,nitrite spikes in the erly satges of the tank being set up thus helping to reduce the risk of algae from showing up.
So 50% water changes every other day, 10 drops of PlantGrow the day after the water change, 10 drops of clycle on the day of water change, carbon in the filter and good Co2 help me get an aglae free cube.
Let me explain...
50% water change, like you i learnd the hard way!
The the 10 drops of plant grow was an educated guess, but i only added te fert the day after water changes because of concerns that ingrediants in the dechlorintor may affect my ferts, so this is why i dosed the day after water changes.
The 10 drops of cycle on water change day was done becasue of the above but also because i was concernd about the amount of water coming out (removing excisting bacteria) and tap water ( all be it dechlorinated )flushing round my young filter.
The carbon was added because of concerns for contaminants like pestisides etc in the tap water.I refreshed these every month.
So there you have it!
R,
Graeme.