Yes that fixture run on HO T5 bulbs. Can I just use one t5 instead of downgrading to t8?drlower;4920319; said:if im correct that fixture is t5 ho bulbs? substrate? in a word yes. t5ho on a 40breeder will definatly need ferts and co2. if you do not want to fert and co2 you should drop to at least t8 lights.
I will consider substrate and root tabs if I can get a nice planted tank layout.m1ste2tea;4920504; said:you should also spread out your anubias a bit more. you may even get away with just root tabs if you have a good layer of substrate. if you dont want to spend more money on switching to a t8 system you can unplug one of the bulbs from your t5 light.
I have a tough time trying to figure out how to tie them down. I started using twin t5 bulbs and within a week I see algae creeping on the tank floor.Cohazard;4920535; said:should be just fine, it's the ammount of nutrients in the water that will cause problems. If you feed heavy and run into problems with algae, then drop it down to regular t5.
Are you going to tie down the anubias? They look best tied to driftwood or stones.
The fixture is currently on 3" raiser above the tank. I didn't encounter algae problem until I added the second bulbs this week. I took out one of the bulb hoping to reduce the algae growth. If I use substrate, can I avoid using sand? Can I just use black gravels with root tabs?Pyramid_Party;4920684; said:Yes try using only one bulb. Also you can raise the fixture and it reduces intensity too.