By the way Steven, even Tropica's staff were impressed with you.
I had a small conversation in youtube and i was given a few tips by one of their experts, after he reviewed my threads here.
Here is the reply:
Hi,
just quickly checked over your threads about your tank. Here are my thoughts:
1) Wattage is an expression of how much electricity is used, not the output of light from a lamp. It is (still) easier to understand and relate to, for most people, though. The adviced correlation (=w./l.) is only valid for the T5 fluorescent bulbs, and cannot be used for LED´s. LED is another way of producing light, and will have a very different output. This will affect growth of both algae and plants.
2) Your light should really not be on, for more than 8 - at very max. 10 - hours a day. Use a timer to ensure this. Plants can not utilise longer periodes of light.....algae can !!
3) Your tap-water seem to be partially destilled sea-water. This is comparable to R.O. (Reversed Osmosis) water, and therefore very poor in nutrients, that plants need to grow healthy. Adding all micro- and macro nutrients is therefore an absolute must.
4) Your plants look a bit "leggy" on the pics. This can be in-sufficient light and/or CO2......but in this case more likely from lack of nutrients. Plants will then re-direct nutrients from oldest leaves, to keep growing parts alive (=top), and old leaves will die off.
5) Plants need a well-balanced mix of all nutrients, to thrive successfully and perform. Dosage is influenced by how much plant-mass is present and on how fast plants are growing. Fast-growing plants will of course consume more fertiliser faster. I recommend you read up on the E.I. (= Estimated Index) method. This will keep your plants well fed at all times.
6) Your tank is - in my opinion - lacking plant-mass, to bring biological balance fast. This will very often lead to uncontrollable algae-attacks. You do not need to go buy a lot of more plants.....but you should purchase a few "helping plants". Those are fast-growing plants, that bring plant-mass fast, adding to fast maturity and thereby stability of your tank. This will then make algae-attacks far more controllable. Limnophila sessiliflora is in my opinion an out-standing and quite cheap "helping plant".
7) Next time you are re-doing your tank, do consider a thin layer of substrate, beneath your bottom layer. Thist will work as a "nutrient buffer" for your plants, storing nutrients, that algae can not reach.
8) I am very happy, to see you already have a resourceful and knowing "menthor" in StevenF on your thread. Keep in contact with him, since he really gives you good and insight-full advice.
Hope this is of some help, and that you will enevitably get the beautifull, balanced tank, you deserve.....