I am currently running in my 75-gallon tank that runs a four lamp T5HO fixture over it. I'd like to replace my old lamps with something new. The tank has substrate heating, CO2 injection and currently houses some crypts and Staurogyne repens. I'll add more plants and fish at some later time, after these establish. I've been doing plant tanks for around 15 years but have not kept up with the current availability of T5 lighting. If you could suggest a specific mix bulbs for a four light setup that are commonly available T5 lamps I would appreciate the recommendation.