If there is a large amount of light hitting your tetras, it could stress them out and possibly lead to disease.
Thanks - I'll look into this further.Any red/pink tubes (normally branded for plant growth) will bring out the red nose. Perhaps a blue-ish colour would bring out the silver? Maybe try 10000K?
I have a pair of platinum angel fish and use a combination of Sylvania Grolux and a natural whites.
They positively glow.
Thanks for the replies;
I know what you mean Paulo but I don't want lots of light - just the right combination to show off my fish and keep the vegetation lush and green. I'd still stick to just two T5s over a 200l tank.
Thanks - I'll look into this further.
This sounds good for the silver.Do you also have plants growing in the tank?
I certainly do.
I find a combination of the two work by canceling out that glaringly purple effect you would otherwise achieve by going with full Grolux, yet still obtaining fantastic colouration in plants and fish.
That sounds just what I'm looking for, cheers. Do you have a brand name for the white lights?