Hi all
First post, so don't flame me please 😱
My Roma 200 has been going for somewhere near 8 years using the standard hood and T8 bulbs. I've used all-sorts of different blubs, but never been able to get great plant growth. The tank has changed a lot over that time, but some of the original Crypt's are still going!
Anyway... I installed a Co2 system (from Co2 Art) over Christmas 2014 (1 bps) and started dosing 20ml Neutro+ every day. Plant growth was much better, but still not great. Today I installed a T5HO with x2 39w Full Spectrum bulbs into the standard hood, and would you believe within 4 to 5 hours one of my Java ferns started to pearl. I have never seen this from any of my plants before.
Install...
I tried to install both the T8 and T5 bulbs so they could run at the same time, but it just got too fiddly so I chose T5's only. I was also worried about going from 60w total (from the T8's) up to a combined 138w! I had already upgraded the standard reflectors some years ago (Arcadia I think), so decided to leave these in place and fix the T5 bulbs to them. I removed the standard bulbs and end caps and then drilled 2 small holes (2mm drill bit) at the bottom of the reflector on each side making sure I went into the hood. I actually used the original reflector clips as the marking, but to be honest it doesn't really matter where you drill the holes as long as you support the bulb evenly.
I know pics would be good at this point, but not got any to hand yet.
I then screwed the mounts on using some very small but wide screws (about 4mm width) so as the hole into the hood was as water tight as I could get it. With the mounts fitted I just clipped on the clips and fitted the bulbs. I did take my time in making sure the bulbs and cables were all neat and in the right position for when the hood is placed back on the tank. This is not easy as there's so many cables! I found that the cables to the end caps could be tucked under (or over depending on which way your viewing the hood) the T8 fixings, so that keeps the cables out the way. The cables that run from the front of the hood can be tucked down inside the side V shape on the side of the hood. Doing this means they don’t drop toward the water. They also don’t foul up how the hood fits onto the tank. The hood will still fit snugly. At this point I gleaned a bit of advice from another forum which really helped with the fitting…
“Get everything in place within the hood then put the ballast unit on top of the hood. Lift the hood up and put in place on the tank. A second person can be useful here. Feed the ballast and the cables down the back of the tank and then tidy up as you see fit”.
I did this and it worked fine. I then mounted the ballast inside my cabinet (vertically) with a couple of screws and used cable ties to tidy up the cables the best I could. It still looks a bit of mess, but a tidy mess!
After all that I powered it on and thought… yes that’s better. So much more light intensity, plants were really green, and my Neon and Cardinal Tetra’s were positively gleaming.
I’ll try and get some pics up when I do my next water change.
All in all (so far) a good upgrade that took me a couple of hours.
J.